Home / 1,114,331.20-1,671,506.40-315,630.40

Finding the Fourth Proportional to 1,114,331.20, 1,671,506.40 and 315,630.40

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Solution

The fourth proportional to 1,114,331.20, 1,671,506.40 and 315,630.40 is: 473,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,331.20 : 1,671,506.40 = 315,630.40 : x
  2. Step 2: Convert to fraction form
    1,114,331.20/1,671,506.40 = 315,630.40/x
  3. Step 3: Cross multiply
    1,114,331.20x = 1,671,506.40 × 315,630.40
  4. Step 4: Simplify right side
    1,114,331.20x = 527,578,233,634.56
  5. Step 5: Solve for x
    x = 527,578,233,634.56/1,114,331.20
  6. Step 6: Final answer
    x = 473,448.32

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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.