Home / 743,159.56-1,025,584.41-420,862.72

Finding the Fourth Proportional to 743,159.56, 1,025,584.41 and 420,862.72

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Solution

The fourth proportional to 743,159.56, 1,025,584.41 and 420,862.72 is: 580,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,159.56 : 1,025,584.41 = 420,862.72 : x
  2. Step 2: Convert to fraction form
    743,159.56/1,025,584.41 = 420,862.72/x
  3. Step 3: Cross multiply
    743,159.56x = 1,025,584.41 × 420,862.72
  4. Step 4: Simplify right side
    743,159.56x = 431,630,244,382.20
  5. Step 5: Solve for x
    x = 431,630,244,382.20/743,159.56
  6. Step 6: Final answer
    x = 580,804.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.