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Finding the Fourth Proportional to 474,590.60, 711,885.90 and 458,001.80

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Solution

The fourth proportional to 474,590.60, 711,885.90 and 458,001.80 is: 687,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,590.60 : 711,885.90 = 458,001.80 : x
  2. Step 2: Convert to fraction form
    474,590.60/711,885.90 = 458,001.80/x
  3. Step 3: Cross multiply
    474,590.60x = 711,885.90 × 458,001.80
  4. Step 4: Simplify right side
    474,590.60x = 326,045,023,594.62
  5. Step 5: Solve for x
    x = 326,045,023,594.62/474,590.60
  6. Step 6: Final answer
    x = 687,002.70

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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.