Home / 860,211.28-1,290,367.14-261,191.98

Finding the Fourth Proportional to 860,211.28, 1,290,367.14 and 261,191.98

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Solution

The fourth proportional to 860,211.28, 1,290,367.14 and 261,191.98 is: 391,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,211.28 : 1,290,367.14 = 261,191.98 : x
  2. Step 2: Convert to fraction form
    860,211.28/1,290,367.14 = 261,191.98/x
  3. Step 3: Cross multiply
    860,211.28x = 1,290,367.14 × 261,191.98
  4. Step 4: Simplify right side
    860,211.28x = 337,033,548,223.54
  5. Step 5: Solve for x
    x = 337,033,548,223.54/860,211.28
  6. Step 6: Final answer
    x = 391,803.22

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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.