Home / 810,642.24-1,215,859.68-337,239.36

Finding the Fourth Proportional to 810,642.24, 1,215,859.68 and 337,239.36

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Solution

The fourth proportional to 810,642.24, 1,215,859.68 and 337,239.36 is: 505,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,642.24 : 1,215,859.68 = 337,239.36 : x
  2. Step 2: Convert to fraction form
    810,642.24/1,215,859.68 = 337,239.36/x
  3. Step 3: Cross multiply
    810,642.24x = 1,215,859.68 × 337,239.36
  4. Step 4: Simplify right side
    810,642.24x = 410,035,740,333.01
  5. Step 5: Solve for x
    x = 410,035,740,333.01/810,642.24
  6. Step 6: Final answer
    x = 505,815.91

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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.