Home / 435,904.40-653,856.60-329,616.20

Finding the Fourth Proportional to 435,904.40, 653,856.60 and 329,616.20

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Solution

The fourth proportional to 435,904.40, 653,856.60 and 329,616.20 is: 494,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,904.40 : 653,856.60 = 329,616.20 : x
  2. Step 2: Convert to fraction form
    435,904.40/653,856.60 = 329,616.20/x
  3. Step 3: Cross multiply
    435,904.40x = 653,856.60 × 329,616.20
  4. Step 4: Simplify right side
    435,904.40x = 215,521,727,836.92
  5. Step 5: Solve for x
    x = 215,521,727,836.92/435,904.40
  6. Step 6: Final answer
    x = 494,424.30

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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.