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Finding the Fourth Proportional to 575,149.60, 862,724.40 and 486,576.10

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Solution

The fourth proportional to 575,149.60, 862,724.40 and 486,576.10 is: 729,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,149.60 : 862,724.40 = 486,576.10 : x
  2. Step 2: Convert to fraction form
    575,149.60/862,724.40 = 486,576.10/x
  3. Step 3: Cross multiply
    575,149.60x = 862,724.40 × 486,576.10
  4. Step 4: Simplify right side
    575,149.60x = 419,781,073,926.84
  5. Step 5: Solve for x
    x = 419,781,073,926.84/575,149.60
  6. Step 6: Final answer
    x = 729,864.15

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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.