Home / 426,224.23-639,441.59-126,703.54

Finding the Fourth Proportional to 426,224.23, 639,441.59 and 126,703.54

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Solution

The fourth proportional to 426,224.23, 639,441.59 and 126,703.54 is: 190,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,224.23 : 639,441.59 = 126,703.54 : x
  2. Step 2: Convert to fraction form
    426,224.23/639,441.59 = 126,703.54/x
  3. Step 3: Cross multiply
    426,224.23x = 639,441.59 × 126,703.54
  4. Step 4: Simplify right side
    426,224.23x = 81,019,513,076.23
  5. Step 5: Solve for x
    x = 81,019,513,076.23/426,224.23
  6. Step 6: Final answer
    x = 190,086.60

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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.