Home / 1,419,930.90-2,128,859.55-578,049.30

Finding the Fourth Proportional to 1,419,930.90, 2,128,859.55 and 578,049.30

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Solution

The fourth proportional to 1,419,930.90, 2,128,859.55 and 578,049.30 is: 866,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,930.90 : 2,128,859.55 = 578,049.30 : x
  2. Step 2: Convert to fraction form
    1,419,930.90/2,128,859.55 = 578,049.30/x
  3. Step 3: Cross multiply
    1,419,930.90x = 2,128,859.55 × 578,049.30
  4. Step 4: Simplify right side
    1,419,930.90x = 1,230,585,772,675.82
  5. Step 5: Solve for x
    x = 1,230,585,772,675.82/1,419,930.90
  6. Step 6: Final answer
    x = 866,651.87

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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.