Home / 668,381.70-1,002,572.55-489,020.37

Finding the Fourth Proportional to 668,381.70, 1,002,572.55 and 489,020.37

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Solution

The fourth proportional to 668,381.70, 1,002,572.55 and 489,020.37 is: 733,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,381.70 : 1,002,572.55 = 489,020.37 : x
  2. Step 2: Convert to fraction form
    668,381.70/1,002,572.55 = 489,020.37/x
  3. Step 3: Cross multiply
    668,381.70x = 1,002,572.55 × 489,020.37
  4. Step 4: Simplify right side
    668,381.70x = 490,278,394,339.98
  5. Step 5: Solve for x
    x = 490,278,394,339.98/668,381.70
  6. Step 6: Final answer
    x = 733,530.55

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Similar ratio
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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.