Home / 379,942.20-569,840.40-113,711.40

Finding the Fourth Proportional to 379,942.20, 569,840.40 and 113,711.40

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Solution

The fourth proportional to 379,942.20, 569,840.40 and 113,711.40 is: 170,545.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,942.20 : 569,840.40 = 113,711.40 : x
  2. Step 2: Convert to fraction form
    379,942.20/569,840.40 = 113,711.40/x
  3. Step 3: Cross multiply
    379,942.20x = 569,840.40 × 113,711.40
  4. Step 4: Simplify right side
    379,942.20x = 64,797,349,660.56
  5. Step 5: Solve for x
    x = 64,797,349,660.56/379,942.20
  6. Step 6: Final answer
    x = 170,545.28

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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.