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Finding the Fourth Proportional to 610,787.40, 842,891.70 and 338,873.13

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Solution

The fourth proportional to 610,787.40, 842,891.70 and 338,873.13 is: 467,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,787.40 : 842,891.70 = 338,873.13 : x
  2. Step 2: Convert to fraction form
    610,787.40/842,891.70 = 338,873.13/x
  3. Step 3: Cross multiply
    610,787.40x = 842,891.70 × 338,873.13
  4. Step 4: Simplify right side
    610,787.40x = 285,633,348,630.02
  5. Step 5: Solve for x
    x = 285,633,348,630.02/610,787.40
  6. Step 6: Final answer
    x = 467,647.74

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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.