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Finding the Fourth Proportional to 680,122.26, 938,573.97 and 425,618.10

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Solution

The fourth proportional to 680,122.26, 938,573.97 and 425,618.10 is: 587,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,122.26 : 938,573.97 = 425,618.10 : x
  2. Step 2: Convert to fraction form
    680,122.26/938,573.97 = 425,618.10/x
  3. Step 3: Cross multiply
    680,122.26x = 938,573.97 × 425,618.10
  4. Step 4: Simplify right side
    680,122.26x = 399,474,069,820.86
  5. Step 5: Solve for x
    x = 399,474,069,820.86/680,122.26
  6. Step 6: Final answer
    x = 587,356.26

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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.