Home / 1,386,028.70-2,079,043.05-628,233.20

Finding the Fourth Proportional to 1,386,028.70, 2,079,043.05 and 628,233.20

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Solution

The fourth proportional to 1,386,028.70, 2,079,043.05 and 628,233.20 is: 942,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,028.70 : 2,079,043.05 = 628,233.20 : x
  2. Step 2: Convert to fraction form
    1,386,028.70/2,079,043.05 = 628,233.20/x
  3. Step 3: Cross multiply
    1,386,028.70x = 2,079,043.05 × 628,233.20
  4. Step 4: Simplify right side
    1,386,028.70x = 1,306,123,868,239.26
  5. Step 5: Solve for x
    x = 1,306,123,868,239.26/1,386,028.70
  6. Step 6: Final answer
    x = 942,349.80

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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.