Home / 753,289.20-1,039,718.43-431,185.41

Finding the Fourth Proportional to 753,289.20, 1,039,718.43 and 431,185.41

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Solution

The fourth proportional to 753,289.20, 1,039,718.43 and 431,185.41 is: 595,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,289.20 : 1,039,718.43 = 431,185.41 : x
  2. Step 2: Convert to fraction form
    753,289.20/1,039,718.43 = 431,185.41/x
  3. Step 3: Cross multiply
    753,289.20x = 1,039,718.43 × 431,185.41
  4. Step 4: Simplify right side
    753,289.20x = 448,311,417,524.11
  5. Step 5: Solve for x
    x = 448,311,417,524.11/753,289.20
  6. Step 6: Final answer
    x = 595,138.52

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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.