Home / 876,251.70-1,209,236.58-489,104.10

Finding the Fourth Proportional to 876,251.70, 1,209,236.58 and 489,104.10

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Solution

The fourth proportional to 876,251.70, 1,209,236.58 and 489,104.10 is: 674,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,251.70 : 1,209,236.58 = 489,104.10 : x
  2. Step 2: Convert to fraction form
    876,251.70/1,209,236.58 = 489,104.10/x
  3. Step 3: Cross multiply
    876,251.70x = 1,209,236.58 × 489,104.10
  4. Step 4: Simplify right side
    876,251.70x = 591,442,569,147.98
  5. Step 5: Solve for x
    x = 591,442,569,147.98/876,251.70
  6. Step 6: Final answer
    x = 674,968.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.