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Finding the Fourth Proportional to 612,270.80, 844,943.84 and 336,640.32

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Solution

The fourth proportional to 612,270.80, 844,943.84 and 336,640.32 is: 464,569.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,270.80 : 844,943.84 = 336,640.32 : x
  2. Step 2: Convert to fraction form
    612,270.80/844,943.84 = 336,640.32/x
  3. Step 3: Cross multiply
    612,270.80x = 844,943.84 × 336,640.32
  4. Step 4: Simplify right side
    612,270.80x = 284,442,164,258.83
  5. Step 5: Solve for x
    x = 284,442,164,258.83/612,270.80
  6. Step 6: Final answer
    x = 464,569.21

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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.