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Finding the Fourth Proportional to 663,433.55, 994,560.97 and 258,532.03

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Solution

The fourth proportional to 663,433.55, 994,560.97 and 258,532.03 is: 387,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,433.55 : 994,560.97 = 258,532.03 : x
  2. Step 2: Convert to fraction form
    663,433.55/994,560.97 = 258,532.03/x
  3. Step 3: Cross multiply
    663,433.55x = 994,560.97 × 258,532.03
  4. Step 4: Simplify right side
    663,433.55x = 257,125,866,532.87
  5. Step 5: Solve for x
    x = 257,125,866,532.87/663,433.55
  6. Step 6: Final answer
    x = 387,568.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.