Home / 1,152,003.60-1,728,005.40-310,640.40

Finding the Fourth Proportional to 1,152,003.60, 1,728,005.40 and 310,640.40

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Solution

The fourth proportional to 1,152,003.60, 1,728,005.40 and 310,640.40 is: 465,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,003.60 : 1,728,005.40 = 310,640.40 : x
  2. Step 2: Convert to fraction form
    1,152,003.60/1,728,005.40 = 310,640.40/x
  3. Step 3: Cross multiply
    1,152,003.60x = 1,728,005.40 × 310,640.40
  4. Step 4: Simplify right side
    1,152,003.60x = 536,788,288,658.16
  5. Step 5: Solve for x
    x = 536,788,288,658.16/1,152,003.60
  6. Step 6: Final answer
    x = 465,960.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.