Home / 753,287.20-1,039,715.67-431,183.41

Finding the Fourth Proportional to 753,287.20, 1,039,715.67 and 431,183.41

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Solution

The fourth proportional to 753,287.20, 1,039,715.67 and 431,183.41 is: 595,135.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,287.20 : 1,039,715.67 = 431,183.41 : x
  2. Step 2: Convert to fraction form
    753,287.20/1,039,715.67 = 431,183.41/x
  3. Step 3: Cross multiply
    753,287.20x = 1,039,715.67 × 431,183.41
  4. Step 4: Simplify right side
    753,287.20x = 448,308,148,021.04
  5. Step 5: Solve for x
    x = 448,308,148,021.04/753,287.20
  6. Step 6: Final answer
    x = 595,135.76

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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.