Home / 867,821.42-1,296,454.78-561,722.07

Finding the Fourth Proportional to 867,821.42, 1,296,454.78 and 561,722.07

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Solution

The fourth proportional to 867,821.42, 1,296,454.78 and 561,722.07 is: 839,167.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,821.42 : 1,296,454.78 = 561,722.07 : x
  2. Step 2: Convert to fraction form
    867,821.42/1,296,454.78 = 561,722.07/x
  3. Step 3: Cross multiply
    867,821.42x = 1,296,454.78 × 561,722.07
  4. Step 4: Simplify right side
    867,821.42x = 728,247,257,105.80
  5. Step 5: Solve for x
    x = 728,247,257,105.80/867,821.42
  6. Step 6: Final answer
    x = 839,167.18

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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.