Home / 765,163.21-1,055,934.10-438,469.76

Finding the Fourth Proportional to 765,163.21, 1,055,934.10 and 438,469.76

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Solution

The fourth proportional to 765,163.21, 1,055,934.10 and 438,469.76 is: 605,093.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,163.21 : 1,055,934.10 = 438,469.76 : x
  2. Step 2: Convert to fraction form
    765,163.21/1,055,934.10 = 438,469.76/x
  3. Step 3: Cross multiply
    765,163.21x = 1,055,934.10 × 438,469.76
  4. Step 4: Simplify right side
    765,163.21x = 462,995,167,417.91
  5. Step 5: Solve for x
    x = 462,995,167,417.91/765,163.21
  6. Step 6: Final answer
    x = 605,093.35

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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.