Home / 3,989,100.70-5,974,793.70-3,280,512.70

Finding the Fourth Proportional to 3,989,100.70, 5,974,793.70 and 3,280,512.70

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Solution

The fourth proportional to 3,989,100.70, 5,974,793.70 and 3,280,512.70 is: 4,913,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,100.70 : 5,974,793.70 = 3,280,512.70 : x
  2. Step 2: Convert to fraction form
    3,989,100.70/5,974,793.70 = 3,280,512.70/x
  3. Step 3: Cross multiply
    3,989,100.70x = 5,974,793.70 × 3,280,512.70
  4. Step 4: Simplify right side
    3,989,100.70x = 19,600,386,612,729.99
  5. Step 5: Solve for x
    x = 19,600,386,612,729.99/3,989,100.70
  6. Step 6: Final answer
    x = 4,913,485.04

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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.