Home / 814,708.20-1,220,750.10-680,863.80

Finding the Fourth Proportional to 814,708.20, 1,220,750.10 and 680,863.80

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Solution

The fourth proportional to 814,708.20, 1,220,750.10 and 680,863.80 is: 1,020,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,708.20 : 1,220,750.10 = 680,863.80 : x
  2. Step 2: Convert to fraction form
    814,708.20/1,220,750.10 = 680,863.80/x
  3. Step 3: Cross multiply
    814,708.20x = 1,220,750.10 × 680,863.80
  4. Step 4: Simplify right side
    814,708.20x = 831,164,551,936.38
  5. Step 5: Solve for x
    x = 831,164,551,936.38/814,708.20
  6. Step 6: Final answer
    x = 1,020,199.07

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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.