Home / 435,928.59-653,905.15-120,385.49

Finding the Fourth Proportional to 435,928.59, 653,905.15 and 120,385.49

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Solution

The fourth proportional to 435,928.59, 653,905.15 and 120,385.49 is: 180,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,928.59 : 653,905.15 = 120,385.49 : x
  2. Step 2: Convert to fraction form
    435,928.59/653,905.15 = 120,385.49/x
  3. Step 3: Cross multiply
    435,928.59x = 653,905.15 × 120,385.49
  4. Step 4: Simplify right side
    435,928.59x = 78,720,691,896.27
  5. Step 5: Solve for x
    x = 78,720,691,896.27/435,928.59
  6. Step 6: Final answer
    x = 180,581.62

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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.