Home / 857,422.80-1,183,158.18-494,963.42

Finding the Fourth Proportional to 857,422.80, 1,183,158.18 and 494,963.42

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Solution

The fourth proportional to 857,422.80, 1,183,158.18 and 494,963.42 is: 683,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,422.80 : 1,183,158.18 = 494,963.42 : x
  2. Step 2: Convert to fraction form
    857,422.80/1,183,158.18 = 494,963.42/x
  3. Step 3: Cross multiply
    857,422.80x = 1,183,158.18 × 494,963.42
  4. Step 4: Simplify right side
    857,422.80x = 585,620,013,257.99
  5. Step 5: Solve for x
    x = 585,620,013,257.99/857,422.80
  6. Step 6: Final answer
    x = 683,000.28

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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.