Home / 427,926.97-642,010.44-171,939.29

Finding the Fourth Proportional to 427,926.97, 642,010.44 and 171,939.29

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Solution

The fourth proportional to 427,926.97, 642,010.44 and 171,939.29 is: 257,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,926.97 : 642,010.44 = 171,939.29 : x
  2. Step 2: Convert to fraction form
    427,926.97/642,010.44 = 171,939.29/x
  3. Step 3: Cross multiply
    427,926.97x = 642,010.44 × 171,939.29
  4. Step 4: Simplify right side
    427,926.97x = 110,386,819,226.19
  5. Step 5: Solve for x
    x = 110,386,819,226.19/427,926.97
  6. Step 6: Final answer
    x = 257,957.15

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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.