Home / 1,079,278.65-1,618,635.84-320,915.88

Finding the Fourth Proportional to 1,079,278.65, 1,618,635.84 and 320,915.88

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Solution

The fourth proportional to 1,079,278.65, 1,618,635.84 and 320,915.88 is: 481,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,278.65 : 1,618,635.84 = 320,915.88 : x
  2. Step 2: Convert to fraction form
    1,079,278.65/1,618,635.84 = 320,915.88/x
  3. Step 3: Cross multiply
    1,079,278.65x = 1,618,635.84 × 320,915.88
  4. Step 4: Simplify right side
    1,079,278.65x = 519,445,944,993.14
  5. Step 5: Solve for x
    x = 519,445,944,993.14/1,079,278.65
  6. Step 6: Final answer
    x = 481,289.93

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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.