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Finding the Fourth Proportional to 487,697.95, 731,153.26 and 448,331.95

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Solution

The fourth proportional to 487,697.95, 731,153.26 and 448,331.95 is: 672,136.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,697.95 : 731,153.26 = 448,331.95 : x
  2. Step 2: Convert to fraction form
    487,697.95/731,153.26 = 448,331.95/x
  3. Step 3: Cross multiply
    487,697.95x = 731,153.26 × 448,331.95
  4. Step 4: Simplify right side
    487,697.95x = 327,799,366,804.66
  5. Step 5: Solve for x
    x = 327,799,366,804.66/487,697.95
  6. Step 6: Final answer
    x = 672,136.04

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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.