Home / 404,717.40-606,875.18-138,402.36

Finding the Fourth Proportional to 404,717.40, 606,875.18 and 138,402.36

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Solution

The fourth proportional to 404,717.40, 606,875.18 and 138,402.36 is: 207,534.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,717.40 : 606,875.18 = 138,402.36 : x
  2. Step 2: Convert to fraction form
    404,717.40/606,875.18 = 138,402.36/x
  3. Step 3: Cross multiply
    404,717.40x = 606,875.18 × 138,402.36
  4. Step 4: Simplify right side
    404,717.40x = 83,992,957,137.42
  5. Step 5: Solve for x
    x = 83,992,957,137.42/404,717.40
  6. Step 6: Final answer
    x = 207,534.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.