Home / 990,411.43-1,481,250.65-862,187.62

Finding the Fourth Proportional to 990,411.43, 1,481,250.65 and 862,187.62

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Solution

The fourth proportional to 990,411.43, 1,481,250.65 and 862,187.62 is: 1,289,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,411.43 : 1,481,250.65 = 862,187.62 : x
  2. Step 2: Convert to fraction form
    990,411.43/1,481,250.65 = 862,187.62/x
  3. Step 3: Cross multiply
    990,411.43x = 1,481,250.65 × 862,187.62
  4. Step 4: Simplify right side
    990,411.43x = 1,277,115,972,546.95
  5. Step 5: Solve for x
    x = 1,277,115,972,546.95/990,411.43
  6. Step 6: Final answer
    x = 1,289,480.24

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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.