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Finding the Fourth Proportional to 557,752.69, 769,703.63 and 303,103.93

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Solution

The fourth proportional to 557,752.69, 769,703.63 and 303,103.93 is: 418,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,752.69 : 769,703.63 = 303,103.93 : x
  2. Step 2: Convert to fraction form
    557,752.69/769,703.63 = 303,103.93/x
  3. Step 3: Cross multiply
    557,752.69x = 769,703.63 × 303,103.93
  4. Step 4: Simplify right side
    557,752.69x = 233,300,193,672.75
  5. Step 5: Solve for x
    x = 233,300,193,672.75/557,752.69
  6. Step 6: Final answer
    x = 418,286.09

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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.