Home / 914,609.40-1,372,059.90-381,856.20

Finding the Fourth Proportional to 914,609.40, 1,372,059.90 and 381,856.20

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Solution

The fourth proportional to 914,609.40, 1,372,059.90 and 381,856.20 is: 572,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,609.40 : 1,372,059.90 = 381,856.20 : x
  2. Step 2: Convert to fraction form
    914,609.40/1,372,059.90 = 381,856.20/x
  3. Step 3: Cross multiply
    914,609.40x = 1,372,059.90 × 381,856.20
  4. Step 4: Simplify right side
    914,609.40x = 523,929,579,586.38
  5. Step 5: Solve for x
    x = 523,929,579,586.38/914,609.40
  6. Step 6: Final answer
    x = 572,845.17

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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.