Home / 578,049.78-867,058.38-157,329.30

Finding the Fourth Proportional to 578,049.78, 867,058.38 and 157,329.30

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Solution

The fourth proportional to 578,049.78, 867,058.38 and 157,329.30 is: 235,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,049.78 : 867,058.38 = 157,329.30 : x
  2. Step 2: Convert to fraction form
    578,049.78/867,058.38 = 157,329.30/x
  3. Step 3: Cross multiply
    578,049.78x = 867,058.38 × 157,329.30
  4. Step 4: Simplify right side
    578,049.78x = 136,413,687,984.53
  5. Step 5: Solve for x
    x = 136,413,687,984.53/578,049.78
  6. Step 6: Final answer
    x = 235,989.52

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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.