Home / 1,229,161.91-1,695,640.52-821,363.87

Finding the Fourth Proportional to 1,229,161.91, 1,695,640.52 and 821,363.87

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Solution

The fourth proportional to 1,229,161.91, 1,695,640.52 and 821,363.87 is: 1,133,079.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,161.91 : 1,695,640.52 = 821,363.87 : x
  2. Step 2: Convert to fraction form
    1,229,161.91/1,695,640.52 = 821,363.87/x
  3. Step 3: Cross multiply
    1,229,161.91x = 1,695,640.52 × 821,363.87
  4. Step 4: Simplify right side
    1,229,161.91x = 1,392,737,847,050.99
  5. Step 5: Solve for x
    x = 1,392,737,847,050.99/1,229,161.91
  6. Step 6: Final answer
    x = 1,133,079.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.