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Finding the Fourth Proportional to 663,229.62, 915,281.37 and 376,798.23

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Solution

The fourth proportional to 663,229.62, 915,281.37 and 376,798.23 is: 519,995.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,229.62 : 915,281.37 = 376,798.23 : x
  2. Step 2: Convert to fraction form
    663,229.62/915,281.37 = 376,798.23/x
  3. Step 3: Cross multiply
    663,229.62x = 915,281.37 × 376,798.23
  4. Step 4: Simplify right side
    663,229.62x = 344,876,400,167.98
  5. Step 5: Solve for x
    x = 344,876,400,167.98/663,229.62
  6. Step 6: Final answer
    x = 519,995.47

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Double scale
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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.