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Finding the Fourth Proportional to 859,596.48, 1,185,940.08 and 491,805

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Solution

The fourth proportional to 859,596.48, 1,185,940.08 and 491,805 is: 678,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,596.48 : 1,185,940.08 = 491,805 : x
  2. Step 2: Convert to fraction form
    859,596.48/1,185,940.08 = 491,805/x
  3. Step 3: Cross multiply
    859,596.48x = 1,185,940.08 × 491,805
  4. Step 4: Simplify right side
    859,596.48x = 583,251,261,044.40
  5. Step 5: Solve for x
    x = 583,251,261,044.40/859,596.48
  6. Step 6: Final answer
    x = 678,517.51

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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.