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Finding the Fourth Proportional to 478,472.96, 660,289.52 and 263,608

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Solution

The fourth proportional to 478,472.96, 660,289.52 and 263,608 is: 363,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,472.96 : 660,289.52 = 263,608 : x
  2. Step 2: Convert to fraction form
    478,472.96/660,289.52 = 263,608/x
  3. Step 3: Cross multiply
    478,472.96x = 660,289.52 × 263,608
  4. Step 4: Simplify right side
    478,472.96x = 174,057,599,788.16
  5. Step 5: Solve for x
    x = 174,057,599,788.16/478,472.96
  6. Step 6: Final answer
    x = 363,777.30

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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.