Home / 2,188,612.40-3,281,363.40-991,108.40

Finding the Fourth Proportional to 2,188,612.40, 3,281,363.40 and 991,108.40

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Solution

The fourth proportional to 2,188,612.40, 3,281,363.40 and 991,108.40 is: 1,485,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,612.40 : 3,281,363.40 = 991,108.40 : x
  2. Step 2: Convert to fraction form
    2,188,612.40/3,281,363.40 = 991,108.40/x
  3. Step 3: Cross multiply
    2,188,612.40x = 3,281,363.40 × 991,108.40
  4. Step 4: Simplify right side
    2,188,612.40x = 3,252,186,829,192.56
  5. Step 5: Solve for x
    x = 3,252,186,829,192.56/2,188,612.40
  6. Step 6: Final answer
    x = 1,485,958.33

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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.