Home / 753,286.20-1,039,714.29-431,182.41

Finding the Fourth Proportional to 753,286.20, 1,039,714.29 and 431,182.41

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Solution

The fourth proportional to 753,286.20, 1,039,714.29 and 431,182.41 is: 595,134.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,286.20 : 1,039,714.29 = 431,182.41 : x
  2. Step 2: Convert to fraction form
    753,286.20/1,039,714.29 = 431,182.41/x
  3. Step 3: Cross multiply
    753,286.20x = 1,039,714.29 × 431,182.41
  4. Step 4: Simplify right side
    753,286.20x = 448,306,513,273.64
  5. Step 5: Solve for x
    x = 448,306,513,273.64/753,286.20
  6. Step 6: Final answer
    x = 595,134.38

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1.5x scale

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.