Home / 809,760.74-1,214,637.64-329,881.51

Finding the Fourth Proportional to 809,760.74, 1,214,637.64 and 329,881.51

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Solution

The fourth proportional to 809,760.74, 1,214,637.64 and 329,881.51 is: 494,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,760.74 : 1,214,637.64 = 329,881.51 : x
  2. Step 2: Convert to fraction form
    809,760.74/1,214,637.64 = 329,881.51/x
  3. Step 3: Cross multiply
    809,760.74x = 1,214,637.64 × 329,881.51
  4. Step 4: Simplify right side
    809,760.74x = 400,686,496,161.79
  5. Step 5: Solve for x
    x = 400,686,496,161.79/809,760.74
  6. Step 6: Final answer
    x = 494,820.85

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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.