Home / 860,294.80-1,290,358.42-261,261.14

Finding the Fourth Proportional to 860,294.80, 1,290,358.42 and 261,261.14

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Solution

The fourth proportional to 860,294.80, 1,290,358.42 and 261,261.14 is: 391,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,294.80 : 1,290,358.42 = 261,261.14 : x
  2. Step 2: Convert to fraction form
    860,294.80/1,290,358.42 = 261,261.14/x
  3. Step 3: Cross multiply
    860,294.80x = 1,290,358.42 × 261,261.14
  4. Step 4: Simplify right side
    860,294.80x = 337,120,511,164.65
  5. Step 5: Solve for x
    x = 337,120,511,164.65/860,294.80
  6. Step 6: Final answer
    x = 391,866.27

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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.