Home / 1,120,454.10-1,680,185.43-321,550.29

Finding the Fourth Proportional to 1,120,454.10, 1,680,185.43 and 321,550.29

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Solution

The fourth proportional to 1,120,454.10, 1,680,185.43 and 321,550.29 is: 482,183.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,454.10 : 1,680,185.43 = 321,550.29 : x
  2. Step 2: Convert to fraction form
    1,120,454.10/1,680,185.43 = 321,550.29/x
  3. Step 3: Cross multiply
    1,120,454.10x = 1,680,185.43 × 321,550.29
  4. Step 4: Simplify right side
    1,120,454.10x = 540,264,112,270.28
  5. Step 5: Solve for x
    x = 540,264,112,270.28/1,120,454.10
  6. Step 6: Final answer
    x = 482,183.17

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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.