Home / 860,298.14-1,290,449.30-261,263.85

Finding the Fourth Proportional to 860,298.14, 1,290,449.30 and 261,263.85

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Solution

The fourth proportional to 860,298.14, 1,290,449.30 and 261,263.85 is: 391,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,298.14 : 1,290,449.30 = 261,263.85 : x
  2. Step 2: Convert to fraction form
    860,298.14/1,290,449.30 = 261,263.85/x
  3. Step 3: Cross multiply
    860,298.14x = 1,290,449.30 × 261,263.85
  4. Step 4: Simplify right side
    860,298.14x = 337,147,751,041.49
  5. Step 5: Solve for x
    x = 337,147,751,041.49/860,298.14
  6. Step 6: Final answer
    x = 391,896.41

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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.