Home / 682,020.38-941,272.98-391,722.86

Finding the Fourth Proportional to 682,020.38, 941,272.98 and 391,722.86

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Solution

The fourth proportional to 682,020.38, 941,272.98 and 391,722.86 is: 540,626.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,020.38 : 941,272.98 = 391,722.86 : x
  2. Step 2: Convert to fraction form
    682,020.38/941,272.98 = 391,722.86/x
  3. Step 3: Cross multiply
    682,020.38x = 941,272.98 × 391,722.86
  4. Step 4: Simplify right side
    682,020.38x = 368,718,143,766.32
  5. Step 5: Solve for x
    x = 368,718,143,766.32/682,020.38
  6. Step 6: Final answer
    x = 540,626.28

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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.