Home / 486,284.06-729,361.47-144,721.35

Finding the Fourth Proportional to 486,284.06, 729,361.47 and 144,721.35

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Solution

The fourth proportional to 486,284.06, 729,361.47 and 144,721.35 is: 217,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,284.06 : 729,361.47 = 144,721.35 : x
  2. Step 2: Convert to fraction form
    486,284.06/729,361.47 = 144,721.35/x
  3. Step 3: Cross multiply
    486,284.06x = 729,361.47 × 144,721.35
  4. Step 4: Simplify right side
    486,284.06x = 105,554,174,029.37
  5. Step 5: Solve for x
    x = 105,554,174,029.37/486,284.06
  6. Step 6: Final answer
    x = 217,062.79

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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.