Home / 842,918.28-1,263,045.78-684,372.12

Finding the Fourth Proportional to 842,918.28, 1,263,045.78 and 684,372.12

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Solution

The fourth proportional to 842,918.28, 1,263,045.78 and 684,372.12 is: 1,025,477.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,918.28 : 1,263,045.78 = 684,372.12 : x
  2. Step 2: Convert to fraction form
    842,918.28/1,263,045.78 = 684,372.12/x
  3. Step 3: Cross multiply
    842,918.28x = 1,263,045.78 × 684,372.12
  4. Step 4: Simplify right side
    842,918.28x = 864,393,318,115.65
  5. Step 5: Solve for x
    x = 864,393,318,115.65/842,918.28
  6. Step 6: Final answer
    x = 1,025,477.01

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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.