Home / 478,128.80-659,832.26-263,276.55

Finding the Fourth Proportional to 478,128.80, 659,832.26 and 263,276.55

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Solution

The fourth proportional to 478,128.80, 659,832.26 and 263,276.55 is: 363,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,128.80 : 659,832.26 = 263,276.55 : x
  2. Step 2: Convert to fraction form
    478,128.80/659,832.26 = 263,276.55/x
  3. Step 3: Cross multiply
    478,128.80x = 659,832.26 × 263,276.55
  4. Step 4: Simplify right side
    478,128.80x = 173,718,359,675.12
  5. Step 5: Solve for x
    x = 173,718,359,675.12/478,128.80
  6. Step 6: Final answer
    x = 363,329.63

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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.