Home / 803,520.38-1,108,684.91-463,791.80

Finding the Fourth Proportional to 803,520.38, 1,108,684.91 and 463,791.80

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Solution

The fourth proportional to 803,520.38, 1,108,684.91 and 463,791.80 is: 639,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,520.38 : 1,108,684.91 = 463,791.80 : x
  2. Step 2: Convert to fraction form
    803,520.38/1,108,684.91 = 463,791.80/x
  3. Step 3: Cross multiply
    803,520.38x = 1,108,684.91 × 463,791.80
  4. Step 4: Simplify right side
    803,520.38x = 514,198,973,972.93
  5. Step 5: Solve for x
    x = 514,198,973,972.93/803,520.38
  6. Step 6: Final answer
    x = 639,932.71

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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.