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Finding the Fourth Proportional to 502,363.38, 693,065.79 and 284,521.98

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Solution

The fourth proportional to 502,363.38, 693,065.79 and 284,521.98 is: 392,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,363.38 : 693,065.79 = 284,521.98 : x
  2. Step 2: Convert to fraction form
    502,363.38/693,065.79 = 284,521.98/x
  3. Step 3: Cross multiply
    502,363.38x = 693,065.79 × 284,521.98
  4. Step 4: Simplify right side
    502,363.38x = 197,192,450,841.06
  5. Step 5: Solve for x
    x = 197,192,450,841.06/502,363.38
  6. Step 6: Final answer
    x = 392,529.51

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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.