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Finding the Fourth Proportional to 557,993.26, 769,998 and 303,342.22

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Solution

The fourth proportional to 557,993.26, 769,998 and 303,342.22 is: 418,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,993.26 : 769,998 = 303,342.22 : x
  2. Step 2: Convert to fraction form
    557,993.26/769,998 = 303,342.22/x
  3. Step 3: Cross multiply
    557,993.26x = 769,998 × 303,342.22
  4. Step 4: Simplify right side
    557,993.26x = 233,572,902,715.56
  5. Step 5: Solve for x
    x = 233,572,902,715.56/557,993.26
  6. Step 6: Final answer
    x = 418,594.49

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1.5x scale

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.