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Finding the Fourth Proportional to 478,552.45, 660,372.63 and 263,680.49

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Solution

The fourth proportional to 478,552.45, 660,372.63 and 263,680.49 is: 363,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,552.45 : 660,372.63 = 263,680.49 : x
  2. Step 2: Convert to fraction form
    478,552.45/660,372.63 = 263,680.49/x
  3. Step 3: Cross multiply
    478,552.45x = 660,372.63 × 263,680.49
  4. Step 4: Simplify right side
    478,552.45x = 174,127,377,342.59
  5. Step 5: Solve for x
    x = 174,127,377,342.59/478,552.45
  6. Step 6: Final answer
    x = 363,862.68

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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.