Home / 478,748.58-718,121.52-141,815.49

Finding the Fourth Proportional to 478,748.58, 718,121.52 and 141,815.49

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Solution

The fourth proportional to 478,748.58, 718,121.52 and 141,815.49 is: 212,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,748.58 : 718,121.52 = 141,815.49 : x
  2. Step 2: Convert to fraction form
    478,748.58/718,121.52 = 141,815.49/x
  3. Step 3: Cross multiply
    478,748.58x = 718,121.52 × 141,815.49
  4. Step 4: Simplify right side
    478,748.58x = 101,840,755,238.35
  5. Step 5: Solve for x
    x = 101,840,755,238.35/478,748.58
  6. Step 6: Final answer
    x = 212,722.84

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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.