Home / 409,584.24-614,376.28-129,123.44

Finding the Fourth Proportional to 409,584.24, 614,376.28 and 129,123.44

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Solution

The fourth proportional to 409,584.24, 614,376.28 and 129,123.44 is: 193,685.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,584.24 : 614,376.28 = 129,123.44 : x
  2. Step 2: Convert to fraction form
    409,584.24/614,376.28 = 129,123.44/x
  3. Step 3: Cross multiply
    409,584.24x = 614,376.28 × 129,123.44
  4. Step 4: Simplify right side
    409,584.24x = 79,330,378,728.00
  5. Step 5: Solve for x
    x = 79,330,378,728.00/409,584.24
  6. Step 6: Final answer
    x = 193,685.13

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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.