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Finding the Fourth Proportional to 557,706.13, 769,633.04 and 303,057.32

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Solution

The fourth proportional to 557,706.13, 769,633.04 and 303,057.32 is: 418,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,706.13 : 769,633.04 = 303,057.32 : x
  2. Step 2: Convert to fraction form
    557,706.13/769,633.04 = 303,057.32/x
  3. Step 3: Cross multiply
    557,706.13x = 769,633.04 × 303,057.32
  4. Step 4: Simplify right side
    557,706.13x = 233,242,923,395.33
  5. Step 5: Solve for x
    x = 233,242,923,395.33/557,706.13
  6. Step 6: Final answer
    x = 418,218.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.