Home / 639,738.34-959,608.74-166,422.94

Finding the Fourth Proportional to 639,738.34, 959,608.74 and 166,422.94

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Solution

The fourth proportional to 639,738.34, 959,608.74 and 166,422.94 is: 249,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,738.34 : 959,608.74 = 166,422.94 : x
  2. Step 2: Convert to fraction form
    639,738.34/959,608.74 = 166,422.94/x
  3. Step 3: Cross multiply
    639,738.34x = 959,608.74 × 166,422.94
  4. Step 4: Simplify right side
    639,738.34x = 159,700,907,760.50
  5. Step 5: Solve for x
    x = 159,700,907,760.50/639,738.34
  6. Step 6: Final answer
    x = 249,634.73

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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.