Home / 709,450.50-979,062.33-387,181.37

Finding the Fourth Proportional to 709,450.50, 979,062.33 and 387,181.37

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Solution

The fourth proportional to 709,450.50, 979,062.33 and 387,181.37 is: 534,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,450.50 : 979,062.33 = 387,181.37 : x
  2. Step 2: Convert to fraction form
    709,450.50/979,062.33 = 387,181.37/x
  3. Step 3: Cross multiply
    709,450.50x = 979,062.33 × 387,181.37
  4. Step 4: Simplify right side
    709,450.50x = 379,074,689,349.48
  5. Step 5: Solve for x
    x = 379,074,689,349.48/709,450.50
  6. Step 6: Final answer
    x = 534,321.55

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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.