Home / 821,815.25-1,226,704.71-724,745.02

Finding the Fourth Proportional to 821,815.25, 1,226,704.71 and 724,745.02

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Solution

The fourth proportional to 821,815.25, 1,226,704.71 and 724,745.02 is: 1,081,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,815.25 : 1,226,704.71 = 724,745.02 : x
  2. Step 2: Convert to fraction form
    821,815.25/1,226,704.71 = 724,745.02/x
  3. Step 3: Cross multiply
    821,815.25x = 1,226,704.71 × 724,745.02
  4. Step 4: Simplify right side
    821,815.25x = 889,048,126,516.28
  5. Step 5: Solve for x
    x = 889,048,126,516.28/821,815.25
  6. Step 6: Final answer
    x = 1,081,810.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.