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Finding the Fourth Proportional to 612,004.68, 844,555.26 and 340,067.64

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Solution

The fourth proportional to 612,004.68, 844,555.26 and 340,067.64 is: 469,287.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,004.68 : 844,555.26 = 340,067.64 : x
  2. Step 2: Convert to fraction form
    612,004.68/844,555.26 = 340,067.64/x
  3. Step 3: Cross multiply
    612,004.68x = 844,555.26 × 340,067.64
  4. Step 4: Simplify right side
    612,004.68x = 287,205,914,117.79
  5. Step 5: Solve for x
    x = 287,205,914,117.79/612,004.68
  6. Step 6: Final answer
    x = 469,287.12

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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.