Home / 638,514.63-881,156.14-352,044.90

Finding the Fourth Proportional to 638,514.63, 881,156.14 and 352,044.90

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Solution

The fourth proportional to 638,514.63, 881,156.14 and 352,044.90 is: 485,825.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,514.63 : 881,156.14 = 352,044.90 : x
  2. Step 2: Convert to fraction form
    638,514.63/881,156.14 = 352,044.90/x
  3. Step 3: Cross multiply
    638,514.63x = 881,156.14 × 352,044.90
  4. Step 4: Simplify right side
    638,514.63x = 310,206,524,310.57
  5. Step 5: Solve for x
    x = 310,206,524,310.57/638,514.63
  6. Step 6: Final answer
    x = 485,825.24

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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.