Home / 478,717.11-718,078.02-141,764.13

Finding the Fourth Proportional to 478,717.11, 718,078.02 and 141,764.13

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Solution

The fourth proportional to 478,717.11, 718,078.02 and 141,764.13 is: 212,646.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,717.11 : 718,078.02 = 141,764.13 : x
  2. Step 2: Convert to fraction form
    478,717.11/718,078.02 = 141,764.13/x
  3. Step 3: Cross multiply
    478,717.11x = 718,078.02 × 141,764.13
  4. Step 4: Simplify right side
    478,717.11x = 101,797,705,777.42
  5. Step 5: Solve for x
    x = 101,797,705,777.42/478,717.11
  6. Step 6: Final answer
    x = 212,646.89

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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.