Home / 672,101.40-1,008,152.10-434,155.80

Finding the Fourth Proportional to 672,101.40, 1,008,152.10 and 434,155.80

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Solution

The fourth proportional to 672,101.40, 1,008,152.10 and 434,155.80 is: 651,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,101.40 : 1,008,152.10 = 434,155.80 : x
  2. Step 2: Convert to fraction form
    672,101.40/1,008,152.10 = 434,155.80/x
  3. Step 3: Cross multiply
    672,101.40x = 1,008,152.10 × 434,155.80
  4. Step 4: Simplify right side
    672,101.40x = 437,695,081,497.18
  5. Step 5: Solve for x
    x = 437,695,081,497.18/672,101.40
  6. Step 6: Final answer
    x = 651,233.70

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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.