Home / 1,289,616.90-1,933,964.55-579,984.90

Finding the Fourth Proportional to 1,289,616.90, 1,933,964.55 and 579,984.90

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Solution

The fourth proportional to 1,289,616.90, 1,933,964.55 and 579,984.90 is: 869,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,616.90 : 1,933,964.55 = 579,984.90 : x
  2. Step 2: Convert to fraction form
    1,289,616.90/1,933,964.55 = 579,984.90/x
  3. Step 3: Cross multiply
    1,289,616.90x = 1,933,964.55 × 579,984.90
  4. Step 4: Simplify right side
    1,289,616.90x = 1,121,670,236,135.30
  5. Step 5: Solve for x
    x = 1,121,670,236,135.30/1,289,616.90
  6. Step 6: Final answer
    x = 869,770.11

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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.