Home / 766,141.92-1,148,828.40-446,397.12

Finding the Fourth Proportional to 766,141.92, 1,148,828.40 and 446,397.12

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Solution

The fourth proportional to 766,141.92, 1,148,828.40 and 446,397.12 is: 669,371.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,141.92 : 1,148,828.40 = 446,397.12 : x
  2. Step 2: Convert to fraction form
    766,141.92/1,148,828.40 = 446,397.12/x
  3. Step 3: Cross multiply
    766,141.92x = 1,148,828.40 × 446,397.12
  4. Step 4: Simplify right side
    766,141.92x = 512,833,689,134.21
  5. Step 5: Solve for x
    x = 512,833,689,134.21/766,141.92
  6. Step 6: Final answer
    x = 669,371.66

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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.