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Finding the Fourth Proportional to 478,347.53, 660,124.49 and 263,493

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Solution

The fourth proportional to 478,347.53, 660,124.49 and 263,493 is: 363,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,347.53 : 660,124.49 = 263,493 : x
  2. Step 2: Convert to fraction form
    478,347.53/660,124.49 = 263,493/x
  3. Step 3: Cross multiply
    478,347.53x = 660,124.49 × 263,493
  4. Step 4: Simplify right side
    478,347.53x = 173,938,180,926.11
  5. Step 5: Solve for x
    x = 173,938,180,926.11/478,347.53
  6. Step 6: Final answer
    x = 363,623.04

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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.