Home / 1,215,432.24-1,821,904.08-615,280.56

Finding the Fourth Proportional to 1,215,432.24, 1,821,904.08 and 615,280.56

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Solution

The fourth proportional to 1,215,432.24, 1,821,904.08 and 615,280.56 is: 922,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,432.24 : 1,821,904.08 = 615,280.56 : x
  2. Step 2: Convert to fraction form
    1,215,432.24/1,821,904.08 = 615,280.56/x
  3. Step 3: Cross multiply
    1,215,432.24x = 1,821,904.08 × 615,280.56
  4. Step 4: Simplify right side
    1,215,432.24x = 1,120,982,162,608.69
  5. Step 5: Solve for x
    x = 1,120,982,162,608.69/1,215,432.24
  6. Step 6: Final answer
    x = 922,290.96

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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.