Home / 406,669.28-610,085.52-140,439.56

Finding the Fourth Proportional to 406,669.28, 610,085.52 and 140,439.56

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Solution

The fourth proportional to 406,669.28, 610,085.52 and 140,439.56 is: 210,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,669.28 : 610,085.52 = 140,439.56 : x
  2. Step 2: Convert to fraction form
    406,669.28/610,085.52 = 140,439.56/x
  3. Step 3: Cross multiply
    406,669.28x = 610,085.52 × 140,439.56
  4. Step 4: Simplify right side
    406,669.28x = 85,680,141,991.17
  5. Step 5: Solve for x
    x = 85,680,141,991.17/406,669.28
  6. Step 6: Final answer
    x = 210,687.52

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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.