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Finding the Fourth Proportional to 612,268.74, 844,872.86 and 340,304.34

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Solution

The fourth proportional to 612,268.74, 844,872.86 and 340,304.34 is: 469,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,268.74 : 844,872.86 = 340,304.34 : x
  2. Step 2: Convert to fraction form
    612,268.74/844,872.86 = 340,304.34/x
  3. Step 3: Cross multiply
    612,268.74x = 844,872.86 × 340,304.34
  4. Step 4: Simplify right side
    612,268.74x = 287,513,901,006.21
  5. Step 5: Solve for x
    x = 287,513,901,006.21/612,268.74
  6. Step 6: Final answer
    x = 469,587.75

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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.