Home / 639,079.80-882,008.22-367,147.18

Finding the Fourth Proportional to 639,079.80, 882,008.22 and 367,147.18

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Solution

The fourth proportional to 639,079.80, 882,008.22 and 367,147.18 is: 506,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,079.80 : 882,008.22 = 367,147.18 : x
  2. Step 2: Convert to fraction form
    639,079.80/882,008.22 = 367,147.18/x
  3. Step 3: Cross multiply
    639,079.80x = 882,008.22 × 367,147.18
  4. Step 4: Simplify right side
    639,079.80x = 323,826,830,709.82
  5. Step 5: Solve for x
    x = 323,826,830,709.82/639,079.80
  6. Step 6: Final answer
    x = 506,707.97

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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.