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Finding the Fourth Proportional to 474,587.60, 711,881.40 and 457,998.80

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Solution

The fourth proportional to 474,587.60, 711,881.40 and 457,998.80 is: 686,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,587.60 : 711,881.40 = 457,998.80 : x
  2. Step 2: Convert to fraction form
    474,587.60/711,881.40 = 457,998.80/x
  3. Step 3: Cross multiply
    474,587.60x = 711,881.40 × 457,998.80
  4. Step 4: Simplify right side
    474,587.60x = 326,040,826,942.32
  5. Step 5: Solve for x
    x = 326,040,826,942.32/474,587.60
  6. Step 6: Final answer
    x = 686,998.20

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Similar ratio
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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.