Home / 774,118.12-1,161,250.62-300,840.04

Finding the Fourth Proportional to 774,118.12, 1,161,250.62 and 300,840.04

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Solution

The fourth proportional to 774,118.12, 1,161,250.62 and 300,840.04 is: 451,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,118.12 : 1,161,250.62 = 300,840.04 : x
  2. Step 2: Convert to fraction form
    774,118.12/1,161,250.62 = 300,840.04/x
  3. Step 3: Cross multiply
    774,118.12x = 1,161,250.62 × 300,840.04
  4. Step 4: Simplify right side
    774,118.12x = 349,350,682,970.83
  5. Step 5: Solve for x
    x = 349,350,682,970.83/774,118.12
  6. Step 6: Final answer
    x = 451,288.60

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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.