Home / 766,246.78-1,057,344.87-426,746.62

Finding the Fourth Proportional to 766,246.78, 1,057,344.87 and 426,746.62

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Solution

The fourth proportional to 766,246.78, 1,057,344.87 and 426,746.62 is: 588,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,246.78 : 1,057,344.87 = 426,746.62 : x
  2. Step 2: Convert to fraction form
    766,246.78/1,057,344.87 = 426,746.62/x
  3. Step 3: Cross multiply
    766,246.78x = 1,057,344.87 × 426,746.62
  4. Step 4: Simplify right side
    766,246.78x = 451,218,349,446.84
  5. Step 5: Solve for x
    x = 451,218,349,446.84/766,246.78
  6. Step 6: Final answer
    x = 588,868.18

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.