Home / 820,233.60-1,229,313.60-398,601.60

Finding the Fourth Proportional to 820,233.60, 1,229,313.60 and 398,601.60

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Solution

The fourth proportional to 820,233.60, 1,229,313.60 and 398,601.60 is: 597,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,233.60 : 1,229,313.60 = 398,601.60 : x
  2. Step 2: Convert to fraction form
    820,233.60/1,229,313.60 = 398,601.60/x
  3. Step 3: Cross multiply
    820,233.60x = 1,229,313.60 × 398,601.60
  4. Step 4: Simplify right side
    820,233.60x = 490,006,367,861.76
  5. Step 5: Solve for x
    x = 490,006,367,861.76/820,233.60
  6. Step 6: Final answer
    x = 597,398.56

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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.