Home / 860,419.67-1,290,618.56-386,770.14

Finding the Fourth Proportional to 860,419.67, 1,290,618.56 and 386,770.14

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Solution

The fourth proportional to 860,419.67, 1,290,618.56 and 386,770.14 is: 580,150.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,419.67 : 1,290,618.56 = 386,770.14 : x
  2. Step 2: Convert to fraction form
    860,419.67/1,290,618.56 = 386,770.14/x
  3. Step 3: Cross multiply
    860,419.67x = 1,290,618.56 × 386,770.14
  4. Step 4: Simplify right side
    860,419.67x = 499,172,722,104.72
  5. Step 5: Solve for x
    x = 499,172,722,104.72/860,419.67
  6. Step 6: Final answer
    x = 580,150.29

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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.