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Finding the Fourth Proportional to 626,837.88, 865,036.27 and 358,565.88

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Solution

The fourth proportional to 626,837.88, 865,036.27 and 358,565.88 is: 494,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,837.88 : 865,036.27 = 358,565.88 : x
  2. Step 2: Convert to fraction form
    626,837.88/865,036.27 = 358,565.88/x
  3. Step 3: Cross multiply
    626,837.88x = 865,036.27 × 358,565.88
  4. Step 4: Simplify right side
    626,837.88x = 310,172,491,384.47
  5. Step 5: Solve for x
    x = 310,172,491,384.47/626,837.88
  6. Step 6: Final answer
    x = 494,820.91

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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.