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Finding the Fourth Proportional to 649,861.80, 974,447.10 and 275,461.80

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Solution

The fourth proportional to 649,861.80, 974,447.10 and 275,461.80 is: 413,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,861.80 : 974,447.10 = 275,461.80 : x
  2. Step 2: Convert to fraction form
    649,861.80/974,447.10 = 275,461.80/x
  3. Step 3: Cross multiply
    649,861.80x = 974,447.10 × 275,461.80
  4. Step 4: Simplify right side
    649,861.80x = 268,422,952,170.78
  5. Step 5: Solve for x
    x = 268,422,952,170.78/649,861.80
  6. Step 6: Final answer
    x = 413,046.21

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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.