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Finding the Fourth Proportional to 502,516.43, 693,191.96 and 308,789.54

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Solution

The fourth proportional to 502,516.43, 693,191.96 and 308,789.54 is: 425,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,516.43 : 693,191.96 = 308,789.54 : x
  2. Step 2: Convert to fraction form
    502,516.43/693,191.96 = 308,789.54/x
  3. Step 3: Cross multiply
    502,516.43x = 693,191.96 × 308,789.54
  4. Step 4: Simplify right side
    502,516.43x = 214,050,421,450.19
  5. Step 5: Solve for x
    x = 214,050,421,450.19/502,516.43
  6. Step 6: Final answer
    x = 425,957.06

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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.