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Finding the Fourth Proportional to 530,055.60, 731,463.60 and 303,686.52

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Solution

The fourth proportional to 530,055.60, 731,463.60 and 303,686.52 is: 419,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,055.60 : 731,463.60 = 303,686.52 : x
  2. Step 2: Convert to fraction form
    530,055.60/731,463.60 = 303,686.52/x
  3. Step 3: Cross multiply
    530,055.60x = 731,463.60 × 303,686.52
  4. Step 4: Simplify right side
    530,055.60x = 222,135,635,190.67
  5. Step 5: Solve for x
    x = 222,135,635,190.67/530,055.60
  6. Step 6: Final answer
    x = 419,079.88

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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.