Home / 1,643,552.92-2,268,098.20-918,401.36

Finding the Fourth Proportional to 1,643,552.92, 2,268,098.20 and 918,401.36

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Solution

The fourth proportional to 1,643,552.92, 2,268,098.20 and 918,401.36 is: 1,267,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,552.92 : 2,268,098.20 = 918,401.36 : x
  2. Step 2: Convert to fraction form
    1,643,552.92/2,268,098.20 = 918,401.36/x
  3. Step 3: Cross multiply
    1,643,552.92x = 2,268,098.20 × 918,401.36
  4. Step 4: Simplify right side
    1,643,552.92x = 2,083,024,471,493.55
  5. Step 5: Solve for x
    x = 2,083,024,471,493.55/1,643,552.92
  6. Step 6: Final answer
    x = 1,267,391.18

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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.