Home / 891,565.89-1,230,257.13-499,120.34

Finding the Fourth Proportional to 891,565.89, 1,230,257.13 and 499,120.34

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Solution

The fourth proportional to 891,565.89, 1,230,257.13 and 499,120.34 is: 688,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,565.89 : 1,230,257.13 = 499,120.34 : x
  2. Step 2: Convert to fraction form
    891,565.89/1,230,257.13 = 499,120.34/x
  3. Step 3: Cross multiply
    891,565.89x = 1,230,257.13 × 499,120.34
  4. Step 4: Simplify right side
    891,565.89x = 614,046,350,861.74
  5. Step 5: Solve for x
    x = 614,046,350,861.74/891,565.89
  6. Step 6: Final answer
    x = 688,727.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.