Home / 860,839.70-1,291,209.73-328,414.55

Finding the Fourth Proportional to 860,839.70, 1,291,209.73 and 328,414.55

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Solution

The fourth proportional to 860,839.70, 1,291,209.73 and 328,414.55 is: 492,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,839.70 : 1,291,209.73 = 328,414.55 : x
  2. Step 2: Convert to fraction form
    860,839.70/1,291,209.73 = 328,414.55/x
  3. Step 3: Cross multiply
    860,839.70x = 1,291,209.73 × 328,414.55
  4. Step 4: Simplify right side
    860,839.70x = 424,052,062,433.57
  5. Step 5: Solve for x
    x = 424,052,062,433.57/860,839.70
  6. Step 6: Final answer
    x = 492,602.82

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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.