Home / 578,436.72-867,333.20-178,964.16

Finding the Fourth Proportional to 578,436.72, 867,333.20 and 178,964.16

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Solution

The fourth proportional to 578,436.72, 867,333.20 and 178,964.16 is: 268,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,436.72 : 867,333.20 = 178,964.16 : x
  2. Step 2: Convert to fraction form
    578,436.72/867,333.20 = 178,964.16/x
  3. Step 3: Cross multiply
    578,436.72x = 867,333.20 × 178,964.16
  4. Step 4: Simplify right side
    578,436.72x = 155,221,557,578.11
  5. Step 5: Solve for x
    x = 155,221,557,578.11/578,436.72
  6. Step 6: Final answer
    x = 268,346.65

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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.