Home / 426,219.64-639,132.63-159,789.58

Finding the Fourth Proportional to 426,219.64, 639,132.63 and 159,789.58

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Solution

The fourth proportional to 426,219.64, 639,132.63 and 159,789.58 is: 239,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,219.64 : 639,132.63 = 159,789.58 : x
  2. Step 2: Convert to fraction form
    426,219.64/639,132.63 = 159,789.58/x
  3. Step 3: Cross multiply
    426,219.64x = 639,132.63 × 159,789.58
  4. Step 4: Simplify right side
    426,219.64x = 102,126,734,512.00
  5. Step 5: Solve for x
    x = 102,126,734,512.00/426,219.64
  6. Step 6: Final answer
    x = 239,610.58

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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.