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Finding the Fourth Proportional to 478,437.23, 717,658.99 and 123,454.33

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Solution

The fourth proportional to 478,437.23, 717,658.99 and 123,454.33 is: 185,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,437.23 : 717,658.99 = 123,454.33 : x
  2. Step 2: Convert to fraction form
    478,437.23/717,658.99 = 123,454.33/x
  3. Step 3: Cross multiply
    478,437.23x = 717,658.99 × 123,454.33
  4. Step 4: Simplify right side
    478,437.23x = 88,598,107,676.14
  5. Step 5: Solve for x
    x = 88,598,107,676.14/478,437.23
  6. Step 6: Final answer
    x = 185,182.30

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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.