Home / 409,840.10-614,104.05-269,434.70

Finding the Fourth Proportional to 409,840.10, 614,104.05 and 269,434.70

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Solution

The fourth proportional to 409,840.10, 614,104.05 and 269,434.70 is: 403,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,840.10 : 614,104.05 = 269,434.70 : x
  2. Step 2: Convert to fraction form
    409,840.10/614,104.05 = 269,434.70/x
  3. Step 3: Cross multiply
    409,840.10x = 614,104.05 × 269,434.70
  4. Step 4: Simplify right side
    409,840.10x = 165,460,940,480.54
  5. Step 5: Solve for x
    x = 165,460,940,480.54/409,840.10
  6. Step 6: Final answer
    x = 403,720.72

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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.