Home / 578,381.48-867,405.34-199,286.76

Finding the Fourth Proportional to 578,381.48, 867,405.34 and 199,286.76

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Solution

The fourth proportional to 578,381.48, 867,405.34 and 199,286.76 is: 298,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,381.48 : 867,405.34 = 199,286.76 : x
  2. Step 2: Convert to fraction form
    578,381.48/867,405.34 = 199,286.76/x
  3. Step 3: Cross multiply
    578,381.48x = 867,405.34 × 199,286.76
  4. Step 4: Simplify right side
    578,381.48x = 172,862,399,815.30
  5. Step 5: Solve for x
    x = 172,862,399,815.30/578,381.48
  6. Step 6: Final answer
    x = 298,872.64

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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.