Home / 1,027,339.28-1,541,293.20-428,582.40

Finding the Fourth Proportional to 1,027,339.28, 1,541,293.20 and 428,582.40

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Solution

The fourth proportional to 1,027,339.28, 1,541,293.20 and 428,582.40 is: 642,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,339.28 : 1,541,293.20 = 428,582.40 : x
  2. Step 2: Convert to fraction form
    1,027,339.28/1,541,293.20 = 428,582.40/x
  3. Step 3: Cross multiply
    1,027,339.28x = 1,541,293.20 × 428,582.40
  4. Step 4: Simplify right side
    1,027,339.28x = 660,571,138,759.68
  5. Step 5: Solve for x
    x = 660,571,138,759.68/1,027,339.28
  6. Step 6: Final answer
    x = 642,992.20

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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.