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Finding the Fourth Proportional to 513,475.79, 708,542.07 and 283,996.62

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Solution

The fourth proportional to 513,475.79, 708,542.07 and 283,996.62 is: 391,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,475.79 : 708,542.07 = 283,996.62 : x
  2. Step 2: Convert to fraction form
    513,475.79/708,542.07 = 283,996.62/x
  3. Step 3: Cross multiply
    513,475.79x = 708,542.07 × 283,996.62
  4. Step 4: Simplify right side
    513,475.79x = 201,223,553,007.80
  5. Step 5: Solve for x
    x = 201,223,553,007.80/513,475.79
  6. Step 6: Final answer
    x = 391,885.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.