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Finding the Fourth Proportional to 663,609.88, 994,825.38 and 258,708.76

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Solution

The fourth proportional to 663,609.88, 994,825.38 and 258,708.76 is: 387,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,609.88 : 994,825.38 = 258,708.76 : x
  2. Step 2: Convert to fraction form
    663,609.88/994,825.38 = 258,708.76/x
  3. Step 3: Cross multiply
    663,609.88x = 994,825.38 × 258,708.76
  4. Step 4: Simplify right side
    663,609.88x = 257,370,040,476.33
  5. Step 5: Solve for x
    x = 257,370,040,476.33/663,609.88
  6. Step 6: Final answer
    x = 387,833.35

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1.5x scale

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.