Home / 821,815.76-1,226,705.46-724,745.52

Finding the Fourth Proportional to 821,815.76, 1,226,705.46 and 724,745.52

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Solution

The fourth proportional to 821,815.76, 1,226,705.46 and 724,745.52 is: 1,081,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,815.76 : 1,226,705.46 = 724,745.52 : x
  2. Step 2: Convert to fraction form
    821,815.76/1,226,705.46 = 724,745.52/x
  3. Step 3: Cross multiply
    821,815.76x = 1,226,705.46 × 724,745.52
  4. Step 4: Simplify right side
    821,815.76x = 889,049,282,870.81
  5. Step 5: Solve for x
    x = 889,049,282,870.81/821,815.76
  6. Step 6: Final answer
    x = 1,081,810.95

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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.