Home / 479,278.20-661,403.96-264,418.76

Finding the Fourth Proportional to 479,278.20, 661,403.96 and 264,418.76

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Solution

The fourth proportional to 479,278.20, 661,403.96 and 264,418.76 is: 364,897.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,278.20 : 661,403.96 = 264,418.76 : x
  2. Step 2: Convert to fraction form
    479,278.20/661,403.96 = 264,418.76/x
  3. Step 3: Cross multiply
    479,278.20x = 661,403.96 × 264,418.76
  4. Step 4: Simplify right side
    479,278.20x = 174,887,614,962.29
  5. Step 5: Solve for x
    x = 174,887,614,962.29/479,278.20
  6. Step 6: Final answer
    x = 364,897.91

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1.5x scale

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.