Home / 478,749.22-718,148.43-123,766.31

Finding the Fourth Proportional to 478,749.22, 718,148.43 and 123,766.31

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Solution

The fourth proportional to 478,749.22, 718,148.43 and 123,766.31 is: 185,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,749.22 : 718,148.43 = 123,766.31 : x
  2. Step 2: Convert to fraction form
    478,749.22/718,148.43 = 123,766.31/x
  3. Step 3: Cross multiply
    478,749.22x = 718,148.43 × 123,766.31
  4. Step 4: Simplify right side
    478,749.22x = 88,882,583,008.76
  5. Step 5: Solve for x
    x = 88,882,583,008.76/478,749.22
  6. Step 6: Final answer
    x = 185,655.83

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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.