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Finding the Fourth Proportional to 591,010.20, 886,515.30 and 402,053.40

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Solution

The fourth proportional to 591,010.20, 886,515.30 and 402,053.40 is: 603,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,010.20 : 886,515.30 = 402,053.40 : x
  2. Step 2: Convert to fraction form
    591,010.20/886,515.30 = 402,053.40/x
  3. Step 3: Cross multiply
    591,010.20x = 886,515.30 × 402,053.40
  4. Step 4: Simplify right side
    591,010.20x = 356,426,490,517.02
  5. Step 5: Solve for x
    x = 356,426,490,517.02/591,010.20
  6. Step 6: Final answer
    x = 603,080.10

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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.