Home / 435,620.20-653,430.30-329,175.40

Finding the Fourth Proportional to 435,620.20, 653,430.30 and 329,175.40

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Solution

The fourth proportional to 435,620.20, 653,430.30 and 329,175.40 is: 493,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,620.20 : 653,430.30 = 329,175.40 : x
  2. Step 2: Convert to fraction form
    435,620.20/653,430.30 = 329,175.40/x
  3. Step 3: Cross multiply
    435,620.20x = 653,430.30 × 329,175.40
  4. Step 4: Simplify right side
    435,620.20x = 215,093,180,374.62
  5. Step 5: Solve for x
    x = 215,093,180,374.62/435,620.20
  6. Step 6: Final answer
    x = 493,763.10

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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.