Home / 1,643,763.72-2,268,197.48-908,618.72

Finding the Fourth Proportional to 1,643,763.72, 2,268,197.48 and 908,618.72

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Solution

The fourth proportional to 1,643,763.72, 2,268,197.48 and 908,618.72 is: 1,253,785.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,763.72 : 2,268,197.48 = 908,618.72 : x
  2. Step 2: Convert to fraction form
    1,643,763.72/2,268,197.48 = 908,618.72/x
  3. Step 3: Cross multiply
    1,643,763.72x = 2,268,197.48 × 908,618.72
  4. Step 4: Simplify right side
    1,643,763.72x = 2,060,926,675,100.74
  5. Step 5: Solve for x
    x = 2,060,926,675,100.74/1,643,763.72
  6. Step 6: Final answer
    x = 1,253,785.23

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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.