Home / 1,391,634.07-2,087,777.79-432,040.66

Finding the Fourth Proportional to 1,391,634.07, 2,087,777.79 and 432,040.66

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Solution

The fourth proportional to 1,391,634.07, 2,087,777.79 and 432,040.66 is: 648,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,634.07 : 2,087,777.79 = 432,040.66 : x
  2. Step 2: Convert to fraction form
    1,391,634.07/2,087,777.79 = 432,040.66/x
  3. Step 3: Cross multiply
    1,391,634.07x = 2,087,777.79 × 432,040.66
  4. Step 4: Simplify right side
    1,391,634.07x = 902,004,894,324.94
  5. Step 5: Solve for x
    x = 902,004,894,324.94/1,391,634.07
  6. Step 6: Final answer
    x = 648,162.41

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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.