Home / 476,538.20-657,633.84-261,665.72

Finding the Fourth Proportional to 476,538.20, 657,633.84 and 261,665.72

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Solution

The fourth proportional to 476,538.20, 657,633.84 and 261,665.72 is: 361,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,538.20 : 657,633.84 = 261,665.72 : x
  2. Step 2: Convert to fraction form
    476,538.20/657,633.84 = 261,665.72/x
  3. Step 3: Cross multiply
    476,538.20x = 657,633.84 × 261,665.72
  4. Step 4: Simplify right side
    476,538.20x = 172,080,232,239.97
  5. Step 5: Solve for x
    x = 172,080,232,239.97/476,538.20
  6. Step 6: Final answer
    x = 361,104.80

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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.