Home / 435,968.12-653,990.15-120,425.33

Finding the Fourth Proportional to 435,968.12, 653,990.15 and 120,425.33

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Solution

The fourth proportional to 435,968.12, 653,990.15 and 120,425.33 is: 180,648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,968.12 : 653,990.15 = 120,425.33 : x
  2. Step 2: Convert to fraction form
    435,968.12/653,990.15 = 120,425.33/x
  3. Step 3: Cross multiply
    435,968.12x = 653,990.15 × 120,425.33
  4. Step 4: Simplify right side
    435,968.12x = 78,756,981,566.54
  5. Step 5: Solve for x
    x = 78,756,981,566.54/435,968.12
  6. Step 6: Final answer
    x = 180,648.49

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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.