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Finding the Fourth Proportional to 557,394.67, 769,208.70 and 302,745.93

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Solution

The fourth proportional to 557,394.67, 769,208.70 and 302,745.93 is: 417,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,394.67 : 769,208.70 = 302,745.93 : x
  2. Step 2: Convert to fraction form
    557,394.67/769,208.70 = 302,745.93/x
  3. Step 3: Cross multiply
    557,394.67x = 769,208.70 × 302,745.93
  4. Step 4: Simplify right side
    557,394.67x = 232,874,803,245.59
  5. Step 5: Solve for x
    x = 232,874,803,245.59/557,394.67
  6. Step 6: Final answer
    x = 417,791.59

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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.