Home / 440,410.58-660,719.28-136,789.24

Finding the Fourth Proportional to 440,410.58, 660,719.28 and 136,789.24

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Solution

The fourth proportional to 440,410.58, 660,719.28 and 136,789.24 is: 205,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,410.58 : 660,719.28 = 136,789.24 : x
  2. Step 2: Convert to fraction form
    440,410.58/660,719.28 = 136,789.24/x
  3. Step 3: Cross multiply
    440,410.58x = 660,719.28 × 136,789.24
  4. Step 4: Simplify right side
    440,410.58x = 90,379,288,164.55
  5. Step 5: Solve for x
    x = 90,379,288,164.55/440,410.58
  6. Step 6: Final answer
    x = 205,215.98

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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.