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Finding the Fourth Proportional to 478,317.50, 660,077.36 and 263,472.10

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Solution

The fourth proportional to 478,317.50, 660,077.36 and 263,472.10 is: 363,591.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,317.50 : 660,077.36 = 263,472.10 : x
  2. Step 2: Convert to fraction form
    478,317.50/660,077.36 = 263,472.10/x
  3. Step 3: Cross multiply
    478,317.50x = 660,077.36 × 263,472.10
  4. Step 4: Simplify right side
    478,317.50x = 173,911,968,201.66
  5. Step 5: Solve for x
    x = 173,911,968,201.66/478,317.50
  6. Step 6: Final answer
    x = 363,591.06

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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.