Home / 1,299,432.12-1,947,839.25-541,692.78

Finding the Fourth Proportional to 1,299,432.12, 1,947,839.25 and 541,692.78

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Solution

The fourth proportional to 1,299,432.12, 1,947,839.25 and 541,692.78 is: 811,993.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,432.12 : 1,947,839.25 = 541,692.78 : x
  2. Step 2: Convert to fraction form
    1,299,432.12/1,947,839.25 = 541,692.78/x
  3. Step 3: Cross multiply
    1,299,432.12x = 1,947,839.25 × 541,692.78
  4. Step 4: Simplify right side
    1,299,432.12x = 1,055,130,458,325.62
  5. Step 5: Solve for x
    x = 1,055,130,458,325.62/1,299,432.12
  6. Step 6: Final answer
    x = 811,993.52

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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.