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Finding the Fourth Proportional to 557,658.07, 769,575.14 and 303,013.51

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Solution

The fourth proportional to 557,658.07, 769,575.14 and 303,013.51 is: 418,162.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,658.07 : 769,575.14 = 303,013.51 : x
  2. Step 2: Convert to fraction form
    557,658.07/769,575.14 = 303,013.51/x
  3. Step 3: Cross multiply
    557,658.07x = 769,575.14 × 303,013.51
  4. Step 4: Simplify right side
    557,658.07x = 233,191,664,380.14
  5. Step 5: Solve for x
    x = 233,191,664,380.14/557,658.07
  6. Step 6: Final answer
    x = 418,162.45

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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.