Home / 709,450.52-979,062.35-387,181.35

Finding the Fourth Proportional to 709,450.52, 979,062.35 and 387,181.35

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Solution

The fourth proportional to 709,450.52, 979,062.35 and 387,181.35 is: 534,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,450.52 : 979,062.35 = 387,181.35 : x
  2. Step 2: Convert to fraction form
    709,450.52/979,062.35 = 387,181.35/x
  3. Step 3: Cross multiply
    709,450.52x = 979,062.35 × 387,181.35
  4. Step 4: Simplify right side
    709,450.52x = 379,074,680,471.27
  5. Step 5: Solve for x
    x = 379,074,680,471.27/709,450.52
  6. Step 6: Final answer
    x = 534,321.52

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1.5x scale

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.