Home / 674,233.20-1,011,787.20-389,923.20

Finding the Fourth Proportional to 674,233.20, 1,011,787.20 and 389,923.20

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Solution

The fourth proportional to 674,233.20, 1,011,787.20 and 389,923.20 is: 585,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,233.20 : 1,011,787.20 = 389,923.20 : x
  2. Step 2: Convert to fraction form
    674,233.20/1,011,787.20 = 389,923.20/x
  3. Step 3: Cross multiply
    674,233.20x = 1,011,787.20 × 389,923.20
  4. Step 4: Simplify right side
    674,233.20x = 394,519,302,743.04
  5. Step 5: Solve for x
    x = 394,519,302,743.04/674,233.20
  6. Step 6: Final answer
    x = 585,137.76

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1.5x scale

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.