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Finding the Fourth Proportional to 530,054.83, 731,462.56 and 303,685.75

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Solution

The fourth proportional to 530,054.83, 731,462.56 and 303,685.75 is: 419,078.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,054.83 : 731,462.56 = 303,685.75 : x
  2. Step 2: Convert to fraction form
    530,054.83/731,462.56 = 303,685.75/x
  3. Step 3: Cross multiply
    530,054.83x = 731,462.56 × 303,685.75
  4. Step 4: Simplify right side
    530,054.83x = 222,134,756,130.52
  5. Step 5: Solve for x
    x = 222,134,756,130.52/530,054.83
  6. Step 6: Final answer
    x = 419,078.83

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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.