Home / 486,314.20-727,721.70-328,850.20

Finding the Fourth Proportional to 486,314.20, 727,721.70 and 328,850.20

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Solution

The fourth proportional to 486,314.20, 727,721.70 and 328,850.20 is: 492,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,314.20 : 727,721.70 = 328,850.20 : x
  2. Step 2: Convert to fraction form
    486,314.20/727,721.70 = 328,850.20/x
  3. Step 3: Cross multiply
    486,314.20x = 727,721.70 × 328,850.20
  4. Step 4: Simplify right side
    486,314.20x = 239,311,426,589.34
  5. Step 5: Solve for x
    x = 239,311,426,589.34/486,314.20
  6. Step 6: Final answer
    x = 492,092.20

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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.