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Finding the Fourth Proportional to 389,560.56, 584,342.52 and 123,322.36

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Solution

The fourth proportional to 389,560.56, 584,342.52 and 123,322.36 is: 184,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,560.56 : 584,342.52 = 123,322.36 : x
  2. Step 2: Convert to fraction form
    389,560.56/584,342.52 = 123,322.36/x
  3. Step 3: Cross multiply
    389,560.56x = 584,342.52 × 123,322.36
  4. Step 4: Simplify right side
    389,560.56x = 72,062,498,614.75
  5. Step 5: Solve for x
    x = 72,062,498,614.75/389,560.56
  6. Step 6: Final answer
    x = 184,984.07

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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.