Home / 426,621.84-639,932.76-127,094.69

Finding the Fourth Proportional to 426,621.84, 639,932.76 and 127,094.69

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Solution

The fourth proportional to 426,621.84, 639,932.76 and 127,094.69 is: 190,642.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,621.84 : 639,932.76 = 127,094.69 : x
  2. Step 2: Convert to fraction form
    426,621.84/639,932.76 = 127,094.69/x
  3. Step 3: Cross multiply
    426,621.84x = 639,932.76 × 127,094.69
  4. Step 4: Simplify right side
    426,621.84x = 81,332,052,553.38
  5. Step 5: Solve for x
    x = 81,332,052,553.38/426,621.84
  6. Step 6: Final answer
    x = 190,642.03

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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.