Home / 2,872,972.80-4,309,459.20-1,273,838.40

Finding the Fourth Proportional to 2,872,972.80, 4,309,459.20 and 1,273,838.40

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Solution

The fourth proportional to 2,872,972.80, 4,309,459.20 and 1,273,838.40 is: 1,910,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,972.80 : 4,309,459.20 = 1,273,838.40 : x
  2. Step 2: Convert to fraction form
    2,872,972.80/4,309,459.20 = 1,273,838.40/x
  3. Step 3: Cross multiply
    2,872,972.80x = 4,309,459.20 × 1,273,838.40
  4. Step 4: Simplify right side
    2,872,972.80x = 5,489,554,612,193.28
  5. Step 5: Solve for x
    x = 5,489,554,612,193.28/2,872,972.80
  6. Step 6: Final answer
    x = 1,910,757.60

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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.