Home / 988,961.40-1,483,296.30-279,061.20

Finding the Fourth Proportional to 988,961.40, 1,483,296.30 and 279,061.20

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Solution

The fourth proportional to 988,961.40, 1,483,296.30 and 279,061.20 is: 418,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,961.40 : 1,483,296.30 = 279,061.20 : x
  2. Step 2: Convert to fraction form
    988,961.40/1,483,296.30 = 279,061.20/x
  3. Step 3: Cross multiply
    988,961.40x = 1,483,296.30 × 279,061.20
  4. Step 4: Simplify right side
    988,961.40x = 413,930,445,433.56
  5. Step 5: Solve for x
    x = 413,930,445,433.56/988,961.40
  6. Step 6: Final answer
    x = 418,550.66

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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.