Home / 2,185,421.76-3,278,432.16-745,719.12

Finding the Fourth Proportional to 2,185,421.76, 3,278,432.16 and 745,719.12

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Solution

The fourth proportional to 2,185,421.76, 3,278,432.16 and 745,719.12 is: 1,118,680.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,421.76 : 3,278,432.16 = 745,719.12 : x
  2. Step 2: Convert to fraction form
    2,185,421.76/3,278,432.16 = 745,719.12/x
  3. Step 3: Cross multiply
    2,185,421.76x = 3,278,432.16 × 745,719.12
  4. Step 4: Simplify right side
    2,185,421.76x = 2,444,789,545,334.90
  5. Step 5: Solve for x
    x = 2,444,789,545,334.90/2,185,421.76
  6. Step 6: Final answer
    x = 1,118,680.88

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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.