Home / 876,619.97-1,315,061.43-307,900.85

Finding the Fourth Proportional to 876,619.97, 1,315,061.43 and 307,900.85

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Solution

The fourth proportional to 876,619.97, 1,315,061.43 and 307,900.85 is: 461,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,619.97 : 1,315,061.43 = 307,900.85 : x
  2. Step 2: Convert to fraction form
    876,619.97/1,315,061.43 = 307,900.85/x
  3. Step 3: Cross multiply
    876,619.97x = 1,315,061.43 × 307,900.85
  4. Step 4: Simplify right side
    876,619.97x = 404,908,524,369.28
  5. Step 5: Solve for x
    x = 404,908,524,369.28/876,619.97
  6. Step 6: Final answer
    x = 461,897.45

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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.