Home / 415,714.28-623,593.68-131,383.20

Finding the Fourth Proportional to 415,714.28, 623,593.68 and 131,383.20

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Solution

The fourth proportional to 415,714.28, 623,593.68 and 131,383.20 is: 197,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,714.28 : 623,593.68 = 131,383.20 : x
  2. Step 2: Convert to fraction form
    415,714.28/623,593.68 = 131,383.20/x
  3. Step 3: Cross multiply
    415,714.28x = 623,593.68 × 131,383.20
  4. Step 4: Simplify right side
    415,714.28x = 81,929,733,178.18
  5. Step 5: Solve for x
    x = 81,929,733,178.18/415,714.28
  6. Step 6: Final answer
    x = 197,081.84

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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.