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Finding the Fourth Proportional to 649,869.30, 974,458.35 and 275,469.30

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Solution

The fourth proportional to 649,869.30, 974,458.35 and 275,469.30 is: 413,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,869.30 : 974,458.35 = 275,469.30 : x
  2. Step 2: Convert to fraction form
    649,869.30/974,458.35 = 275,469.30/x
  3. Step 3: Cross multiply
    649,869.30x = 974,458.35 × 275,469.30
  4. Step 4: Simplify right side
    649,869.30x = 268,433,359,553.66
  5. Step 5: Solve for x
    x = 268,433,359,553.66/649,869.30
  6. Step 6: Final answer
    x = 413,057.46

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1.5x scale

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.