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Finding the Fourth Proportional to 487,716.60, 731,574.90 and 277,764.60

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Solution

The fourth proportional to 487,716.60, 731,574.90 and 277,764.60 is: 416,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,716.60 : 731,574.90 = 277,764.60 : x
  2. Step 2: Convert to fraction form
    487,716.60/731,574.90 = 277,764.60/x
  3. Step 3: Cross multiply
    487,716.60x = 731,574.90 × 277,764.60
  4. Step 4: Simplify right side
    487,716.60x = 203,205,609,468.54
  5. Step 5: Solve for x
    x = 203,205,609,468.54/487,716.60
  6. Step 6: Final answer
    x = 416,646.90

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Similar ratio
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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.