Home / 409,868.40-614,802.60-269,785.20

Finding the Fourth Proportional to 409,868.40, 614,802.60 and 269,785.20

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Solution

The fourth proportional to 409,868.40, 614,802.60 and 269,785.20 is: 404,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,868.40 : 614,802.60 = 269,785.20 : x
  2. Step 2: Convert to fraction form
    409,868.40/614,802.60 = 269,785.20/x
  3. Step 3: Cross multiply
    409,868.40x = 614,802.60 × 269,785.20
  4. Step 4: Simplify right side
    409,868.40x = 165,864,642,401.52
  5. Step 5: Solve for x
    x = 165,864,642,401.52/409,868.40
  6. Step 6: Final answer
    x = 404,677.80

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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.