Home / 705,051.11-1,057,728.47-218,723.41

Finding the Fourth Proportional to 705,051.11, 1,057,728.47 and 218,723.41

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Solution

The fourth proportional to 705,051.11, 1,057,728.47 and 218,723.41 is: 328,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,051.11 : 1,057,728.47 = 218,723.41 : x
  2. Step 2: Convert to fraction form
    705,051.11/1,057,728.47 = 218,723.41/x
  3. Step 3: Cross multiply
    705,051.11x = 1,057,728.47 × 218,723.41
  4. Step 4: Simplify right side
    705,051.11x = 231,349,975,052.97
  5. Step 5: Solve for x
    x = 231,349,975,052.97/705,051.11
  6. Step 6: Final answer
    x = 328,132.20

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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.