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Finding the Fourth Proportional to 926,331, 1,278,336.84 and 502,395

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Solution

The fourth proportional to 926,331, 1,278,336.84 and 502,395 is: 693,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,331 : 1,278,336.84 = 502,395 : x
  2. Step 2: Convert to fraction form
    926,331/1,278,336.84 = 502,395/x
  3. Step 3: Cross multiply
    926,331x = 1,278,336.84 × 502,395
  4. Step 4: Simplify right side
    926,331x = 642,230,036,731.80
  5. Step 5: Solve for x
    x = 642,230,036,731.80/926,331
  6. Step 6: Final answer
    x = 693,305.13

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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.