Home / 1,244,947.20-1,867,420.80-766,650.30

Finding the Fourth Proportional to 1,244,947.20, 1,867,420.80 and 766,650.30

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Solution

The fourth proportional to 1,244,947.20, 1,867,420.80 and 766,650.30 is: 1,149,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,947.20 : 1,867,420.80 = 766,650.30 : x
  2. Step 2: Convert to fraction form
    1,244,947.20/1,867,420.80 = 766,650.30/x
  3. Step 3: Cross multiply
    1,244,947.20x = 1,867,420.80 × 766,650.30
  4. Step 4: Simplify right side
    1,244,947.20x = 1,431,658,716,546.24
  5. Step 5: Solve for x
    x = 1,431,658,716,546.24/1,244,947.20
  6. Step 6: Final answer
    x = 1,149,975.45

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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.