Home / 668,382.80-1,002,574.20-331,475.45

Finding the Fourth Proportional to 668,382.80, 1,002,574.20 and 331,475.45

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Solution

The fourth proportional to 668,382.80, 1,002,574.20 and 331,475.45 is: 497,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,382.80 : 1,002,574.20 = 331,475.45 : x
  2. Step 2: Convert to fraction form
    668,382.80/1,002,574.20 = 331,475.45/x
  3. Step 3: Cross multiply
    668,382.80x = 1,002,574.20 × 331,475.45
  4. Step 4: Simplify right side
    668,382.80x = 332,328,734,103.39
  5. Step 5: Solve for x
    x = 332,328,734,103.39/668,382.80
  6. Step 6: Final answer
    x = 497,213.18

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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.