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Finding the Fourth Proportional to 478,442.43, 660,249.02 and 263,580.62

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Solution

The fourth proportional to 478,442.43, 660,249.02 and 263,580.62 is: 363,740.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,442.43 : 660,249.02 = 263,580.62 : x
  2. Step 2: Convert to fraction form
    478,442.43/660,249.02 = 263,580.62/x
  3. Step 3: Cross multiply
    478,442.43x = 660,249.02 × 263,580.62
  4. Step 4: Simplify right side
    478,442.43x = 174,028,843,403.70
  5. Step 5: Solve for x
    x = 174,028,843,403.70/478,442.43
  6. Step 6: Final answer
    x = 363,740.41

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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.