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Finding the Fourth Proportional to 519,156.26, 779,451.54 and 358,837.28

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Solution

The fourth proportional to 519,156.26, 779,451.54 and 358,837.28 is: 538,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,156.26 : 779,451.54 = 358,837.28 : x
  2. Step 2: Convert to fraction form
    519,156.26/779,451.54 = 358,837.28/x
  3. Step 3: Cross multiply
    519,156.26x = 779,451.54 × 358,837.28
  4. Step 4: Simplify right side
    519,156.26x = 279,696,270,505.41
  5. Step 5: Solve for x
    x = 279,696,270,505.41/519,156.26
  6. Step 6: Final answer
    x = 538,751.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.