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Finding the Fourth Proportional to 530,054.54, 731,494.78 and 303,743.78

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Solution

The fourth proportional to 530,054.54, 731,494.78 and 303,743.78 is: 419,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,054.54 : 731,494.78 = 303,743.78 : x
  2. Step 2: Convert to fraction form
    530,054.54/731,494.78 = 303,743.78/x
  3. Step 3: Cross multiply
    530,054.54x = 731,494.78 × 303,743.78
  4. Step 4: Simplify right side
    530,054.54x = 222,186,989,527.47
  5. Step 5: Solve for x
    x = 222,186,989,527.47/530,054.54
  6. Step 6: Final answer
    x = 419,177.60

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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.