Home / 478,629.88-660,499.32-263,764.42

Finding the Fourth Proportional to 478,629.88, 660,499.32 and 263,764.42

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Solution

The fourth proportional to 478,629.88, 660,499.32 and 263,764.42 is: 363,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,629.88 : 660,499.32 = 263,764.42 : x
  2. Step 2: Convert to fraction form
    478,629.88/660,499.32 = 263,764.42/x
  3. Step 3: Cross multiply
    478,629.88x = 660,499.32 × 263,764.42
  4. Step 4: Simplify right side
    478,629.88x = 174,216,220,050.19
  5. Step 5: Solve for x
    x = 174,216,220,050.19/478,629.88
  6. Step 6: Final answer
    x = 363,989.44

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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.