Home / 2,186,468.20-3,281,084.70-1,287,908.20

Finding the Fourth Proportional to 2,186,468.20, 3,281,084.70 and 1,287,908.20

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Solution

The fourth proportional to 2,186,468.20, 3,281,084.70 and 1,287,908.20 is: 1,932,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,468.20 : 3,281,084.70 = 1,287,908.20 : x
  2. Step 2: Convert to fraction form
    2,186,468.20/3,281,084.70 = 1,287,908.20/x
  3. Step 3: Cross multiply
    2,186,468.20x = 3,281,084.70 × 1,287,908.20
  4. Step 4: Simplify right side
    2,186,468.20x = 4,225,735,890,024.54
  5. Step 5: Solve for x
    x = 4,225,735,890,024.54/2,186,468.20
  6. Step 6: Final answer
    x = 1,932,676.58

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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.