Home / 747,475.35-1,031,157.19-489,238.61

Finding the Fourth Proportional to 747,475.35, 1,031,157.19 and 489,238.61

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Solution

The fourth proportional to 747,475.35, 1,031,157.19 and 489,238.61 is: 674,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,475.35 : 1,031,157.19 = 489,238.61 : x
  2. Step 2: Convert to fraction form
    747,475.35/1,031,157.19 = 489,238.61/x
  3. Step 3: Cross multiply
    747,475.35x = 1,031,157.19 × 489,238.61
  4. Step 4: Simplify right side
    747,475.35x = 504,481,910,327.11
  5. Step 5: Solve for x
    x = 504,481,910,327.11/747,475.35
  6. Step 6: Final answer
    x = 674,914.44

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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.