Home / 435,720.56-653,626.28-120,177.52

Finding the Fourth Proportional to 435,720.56, 653,626.28 and 120,177.52

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Solution

The fourth proportional to 435,720.56, 653,626.28 and 120,177.52 is: 180,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,720.56 : 653,626.28 = 120,177.52 : x
  2. Step 2: Convert to fraction form
    435,720.56/653,626.28 = 120,177.52/x
  3. Step 3: Cross multiply
    435,720.56x = 653,626.28 × 120,177.52
  4. Step 4: Simplify right side
    435,720.56x = 78,551,185,337.23
  5. Step 5: Solve for x
    x = 78,551,185,337.23/435,720.56
  6. Step 6: Final answer
    x = 180,278.81

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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.