Home / 2,920,200.90-4,380,301.35-1,912,431.30

Finding the Fourth Proportional to 2,920,200.90, 4,380,301.35 and 1,912,431.30

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Solution

The fourth proportional to 2,920,200.90, 4,380,301.35 and 1,912,431.30 is: 2,868,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920,200.90 : 4,380,301.35 = 1,912,431.30 : x
  2. Step 2: Convert to fraction form
    2,920,200.90/4,380,301.35 = 1,912,431.30/x
  3. Step 3: Cross multiply
    2,920,200.90x = 4,380,301.35 × 1,912,431.30
  4. Step 4: Simplify right side
    2,920,200.90x = 8,377,025,405,172.26
  5. Step 5: Solve for x
    x = 8,377,025,405,172.26/2,920,200.90
  6. Step 6: Final answer
    x = 2,868,646.95

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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.