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Finding the Fourth Proportional to 530,050.54, 731,489.26 and 303,739.78

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Solution

The fourth proportional to 530,050.54, 731,489.26 and 303,739.78 is: 419,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,050.54 : 731,489.26 = 303,739.78 : x
  2. Step 2: Convert to fraction form
    530,050.54/731,489.26 = 303,739.78/x
  3. Step 3: Cross multiply
    530,050.54x = 731,489.26 × 303,739.78
  4. Step 4: Simplify right side
    530,050.54x = 222,182,386,904.76
  5. Step 5: Solve for x
    x = 222,182,386,904.76/530,050.54
  6. Step 6: Final answer
    x = 419,172.08

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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.