Home / 810,621.60-1,215,932.40-744,266.40

Finding the Fourth Proportional to 810,621.60, 1,215,932.40 and 744,266.40

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Solution

The fourth proportional to 810,621.60, 1,215,932.40 and 744,266.40 is: 1,116,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,621.60 : 1,215,932.40 = 744,266.40 : x
  2. Step 2: Convert to fraction form
    810,621.60/1,215,932.40 = 744,266.40/x
  3. Step 3: Cross multiply
    810,621.60x = 1,215,932.40 × 744,266.40
  4. Step 4: Simplify right side
    810,621.60x = 904,977,629,991.36
  5. Step 5: Solve for x
    x = 904,977,629,991.36/810,621.60
  6. Step 6: Final answer
    x = 1,116,399.60

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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.