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Finding the Fourth Proportional to 646,169.79, 891,797.96 and 370,635.12

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Solution

The fourth proportional to 646,169.79, 891,797.96 and 370,635.12 is: 511,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,169.79 : 891,797.96 = 370,635.12 : x
  2. Step 2: Convert to fraction form
    646,169.79/891,797.96 = 370,635.12/x
  3. Step 3: Cross multiply
    646,169.79x = 891,797.96 × 370,635.12
  4. Step 4: Simplify right side
    646,169.79x = 330,531,642,067.18
  5. Step 5: Solve for x
    x = 330,531,642,067.18/646,169.79
  6. Step 6: Final answer
    x = 511,524.44

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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.