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Finding the Fourth Proportional to 571,502.20, 857,253.30 and 516,389.80

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Solution

The fourth proportional to 571,502.20, 857,253.30 and 516,389.80 is: 774,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,502.20 : 857,253.30 = 516,389.80 : x
  2. Step 2: Convert to fraction form
    571,502.20/857,253.30 = 516,389.80/x
  3. Step 3: Cross multiply
    571,502.20x = 857,253.30 × 516,389.80
  4. Step 4: Simplify right side
    571,502.20x = 442,676,860,136.34
  5. Step 5: Solve for x
    x = 442,676,860,136.34/571,502.20
  6. Step 6: Final answer
    x = 774,584.70

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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.