Home / 1,519,965.80-2,279,948.70-398,148.20

Finding the Fourth Proportional to 1,519,965.80, 2,279,948.70 and 398,148.20

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Solution

The fourth proportional to 1,519,965.80, 2,279,948.70 and 398,148.20 is: 597,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,965.80 : 2,279,948.70 = 398,148.20 : x
  2. Step 2: Convert to fraction form
    1,519,965.80/2,279,948.70 = 398,148.20/x
  3. Step 3: Cross multiply
    1,519,965.80x = 2,279,948.70 × 398,148.20
  4. Step 4: Simplify right side
    1,519,965.80x = 907,757,470,997.34
  5. Step 5: Solve for x
    x = 907,757,470,997.34/1,519,965.80
  6. Step 6: Final answer
    x = 597,222.30

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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.