Home / 664,983.80-996,827.70-380,382.20

Finding the Fourth Proportional to 664,983.80, 996,827.70 and 380,382.20

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Solution

The fourth proportional to 664,983.80, 996,827.70 and 380,382.20 is: 570,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,983.80 : 996,827.70 = 380,382.20 : x
  2. Step 2: Convert to fraction form
    664,983.80/996,827.70 = 380,382.20/x
  3. Step 3: Cross multiply
    664,983.80x = 996,827.70 × 380,382.20
  4. Step 4: Simplify right side
    664,983.80x = 379,175,513,546.94
  5. Step 5: Solve for x
    x = 379,175,513,546.94/664,983.80
  6. Step 6: Final answer
    x = 570,202.63

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1.5x scale

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.