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Finding the Fourth Proportional to 557,559.80, 769,448.36 and 302,926.56

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Solution

The fourth proportional to 557,559.80, 769,448.36 and 302,926.56 is: 418,047.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,559.80 : 769,448.36 = 302,926.56 : x
  2. Step 2: Convert to fraction form
    557,559.80/769,448.36 = 302,926.56/x
  3. Step 3: Cross multiply
    557,559.80x = 769,448.36 × 302,926.56
  4. Step 4: Simplify right side
    557,559.80x = 233,086,344,792.44
  5. Step 5: Solve for x
    x = 233,086,344,792.44/557,559.80
  6. Step 6: Final answer
    x = 418,047.26

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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.