Home / 1,330,691.12-1,996,036.72-419,965.89

Finding the Fourth Proportional to 1,330,691.12, 1,996,036.72 and 419,965.89

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Solution

The fourth proportional to 1,330,691.12, 1,996,036.72 and 419,965.89 is: 629,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,691.12 : 1,996,036.72 = 419,965.89 : x
  2. Step 2: Convert to fraction form
    1,330,691.12/1,996,036.72 = 419,965.89/x
  3. Step 3: Cross multiply
    1,330,691.12x = 1,996,036.72 × 419,965.89
  4. Step 4: Simplify right side
    1,330,691.12x = 838,267,337,587.48
  5. Step 5: Solve for x
    x = 838,267,337,587.48/1,330,691.12
  6. Step 6: Final answer
    x = 629,948.85

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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.