Home / 1,237,021.92-1,706,078.03-870,711.66

Finding the Fourth Proportional to 1,237,021.92, 1,706,078.03 and 870,711.66

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Solution

The fourth proportional to 1,237,021.92, 1,706,078.03 and 870,711.66 is: 1,200,869.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,021.92 : 1,706,078.03 = 870,711.66 : x
  2. Step 2: Convert to fraction form
    1,237,021.92/1,706,078.03 = 870,711.66/x
  3. Step 3: Cross multiply
    1,237,021.92x = 1,706,078.03 × 870,711.66
  4. Step 4: Simplify right side
    1,237,021.92x = 1,485,502,029,237.27
  5. Step 5: Solve for x
    x = 1,485,502,029,237.27/1,237,021.92
  6. Step 6: Final answer
    x = 1,200,869.61

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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.