Home / 674,234.52-1,011,344.85-389,744.05

Finding the Fourth Proportional to 674,234.52, 1,011,344.85 and 389,744.05

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Solution

The fourth proportional to 674,234.52, 1,011,344.85 and 389,744.05 is: 584,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,234.52 : 1,011,344.85 = 389,744.05 : x
  2. Step 2: Convert to fraction form
    674,234.52/1,011,344.85 = 389,744.05/x
  3. Step 3: Cross multiply
    674,234.52x = 1,011,344.85 × 389,744.05
  4. Step 4: Simplify right side
    674,234.52x = 394,165,637,785.64
  5. Step 5: Solve for x
    x = 394,165,637,785.64/674,234.52
  6. Step 6: Final answer
    x = 584,612.07

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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.