Home / 1,643,219.74-2,267,644.20-918,067.45

Finding the Fourth Proportional to 1,643,219.74, 2,267,644.20 and 918,067.45

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Solution

The fourth proportional to 1,643,219.74, 2,267,644.20 and 918,067.45 is: 1,266,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,219.74 : 2,267,644.20 = 918,067.45 : x
  2. Step 2: Convert to fraction form
    1,643,219.74/2,267,644.20 = 918,067.45/x
  3. Step 3: Cross multiply
    1,643,219.74x = 2,267,644.20 × 918,067.45
  4. Step 4: Simplify right side
    1,643,219.74x = 2,081,850,328,201.29
  5. Step 5: Solve for x
    x = 2,081,850,328,201.29/1,643,219.74
  6. Step 6: Final answer
    x = 1,266,933.62

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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.