Home / 914,406.80-1,371,610.20-381,750.80

Finding the Fourth Proportional to 914,406.80, 1,371,610.20 and 381,750.80

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Solution

The fourth proportional to 914,406.80, 1,371,610.20 and 381,750.80 is: 572,626.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,406.80 : 1,371,610.20 = 381,750.80 : x
  2. Step 2: Convert to fraction form
    914,406.80/1,371,610.20 = 381,750.80/x
  3. Step 3: Cross multiply
    914,406.80x = 1,371,610.20 × 381,750.80
  4. Step 4: Simplify right side
    914,406.80x = 523,613,291,138.16
  5. Step 5: Solve for x
    x = 523,613,291,138.16/914,406.80
  6. Step 6: Final answer
    x = 572,626.20

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Double scale
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Similar ratio
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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.