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Finding the Fourth Proportional to 487,891.60, 731,837.40 and 251,695.60

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Solution

The fourth proportional to 487,891.60, 731,837.40 and 251,695.60 is: 377,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,891.60 : 731,837.40 = 251,695.60 : x
  2. Step 2: Convert to fraction form
    487,891.60/731,837.40 = 251,695.60/x
  3. Step 3: Cross multiply
    487,891.60x = 731,837.40 × 251,695.60
  4. Step 4: Simplify right side
    487,891.60x = 184,200,253,495.44
  5. Step 5: Solve for x
    x = 184,200,253,495.44/487,891.60
  6. Step 6: Final answer
    x = 377,543.40

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Similar ratio
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1.5x scale

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.