Home / 386,898.81-533,042.03-299,382.97

Finding the Fourth Proportional to 386,898.81, 533,042.03 and 299,382.97

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Solution

The fourth proportional to 386,898.81, 533,042.03 and 299,382.97 is: 412,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,898.81 : 533,042.03 = 299,382.97 : x
  2. Step 2: Convert to fraction form
    386,898.81/533,042.03 = 299,382.97/x
  3. Step 3: Cross multiply
    386,898.81x = 533,042.03 × 299,382.97
  4. Step 4: Simplify right side
    386,898.81x = 159,583,706,076.23
  5. Step 5: Solve for x
    x = 159,583,706,076.23/386,898.81
  6. Step 6: Final answer
    x = 412,468.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.