Home / 876,642.62-1,314,174.44-315,282.38

Finding the Fourth Proportional to 876,642.62, 1,314,174.44 and 315,282.38

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Solution

The fourth proportional to 876,642.62, 1,314,174.44 and 315,282.38 is: 472,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,642.62 : 1,314,174.44 = 315,282.38 : x
  2. Step 2: Convert to fraction form
    876,642.62/1,314,174.44 = 315,282.38/x
  3. Step 3: Cross multiply
    876,642.62x = 1,314,174.44 × 315,282.38
  4. Step 4: Simplify right side
    876,642.62x = 414,336,039,395.70
  5. Step 5: Solve for x
    x = 414,336,039,395.70/876,642.62
  6. Step 6: Final answer
    x = 472,639.63

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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.