Home / 426,367.28-639,501.30-110,848.79

Finding the Fourth Proportional to 426,367.28, 639,501.30 and 110,848.79

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Solution

The fourth proportional to 426,367.28, 639,501.30 and 110,848.79 is: 166,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,367.28 : 639,501.30 = 110,848.79 : x
  2. Step 2: Convert to fraction form
    426,367.28/639,501.30 = 110,848.79/x
  3. Step 3: Cross multiply
    426,367.28x = 639,501.30 × 110,848.79
  4. Step 4: Simplify right side
    426,367.28x = 70,887,942,110.92
  5. Step 5: Solve for x
    x = 70,887,942,110.92/426,367.28
  6. Step 6: Final answer
    x = 166,260.28

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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.