Home / 578,003.10-867,069.45-178,640.70

Finding the Fourth Proportional to 578,003.10, 867,069.45 and 178,640.70

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Solution

The fourth proportional to 578,003.10, 867,069.45 and 178,640.70 is: 267,981.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,003.10 : 867,069.45 = 178,640.70 : x
  2. Step 2: Convert to fraction form
    578,003.10/867,069.45 = 178,640.70/x
  3. Step 3: Cross multiply
    578,003.10x = 867,069.45 × 178,640.70
  4. Step 4: Simplify right side
    578,003.10x = 154,893,893,496.62
  5. Step 5: Solve for x
    x = 154,893,893,496.62/578,003.10
  6. Step 6: Final answer
    x = 267,981.08

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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.