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Finding the Fourth Proportional to 806,640.16, 1,206,920.10 and 481,224.82

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Solution

The fourth proportional to 806,640.16, 1,206,920.10 and 481,224.82 is: 720,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,640.16 : 1,206,920.10 = 481,224.82 : x
  2. Step 2: Convert to fraction form
    806,640.16/1,206,920.10 = 481,224.82/x
  3. Step 3: Cross multiply
    806,640.16x = 1,206,920.10 × 481,224.82
  4. Step 4: Simplify right side
    806,640.16x = 580,799,907,876.88
  5. Step 5: Solve for x
    x = 580,799,907,876.88/806,640.16
  6. Step 6: Final answer
    x = 720,023.55

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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.