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Finding the Fourth Proportional to 478,580.60, 717,868.88 and 194,268.73

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Solution

The fourth proportional to 478,580.60, 717,868.88 and 194,268.73 is: 291,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,580.60 : 717,868.88 = 194,268.73 : x
  2. Step 2: Convert to fraction form
    478,580.60/717,868.88 = 194,268.73/x
  3. Step 3: Cross multiply
    478,580.60x = 717,868.88 × 194,268.73
  4. Step 4: Simplify right side
    478,580.60x = 139,459,474,932.62
  5. Step 5: Solve for x
    x = 139,459,474,932.62/478,580.60
  6. Step 6: Final answer
    x = 291,402.27

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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.