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Finding the Fourth Proportional to 557,353.37, 769,118.97 and 302,703.95

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Solution

The fourth proportional to 557,353.37, 769,118.97 and 302,703.95 is: 417,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,353.37 : 769,118.97 = 302,703.95 : x
  2. Step 2: Convert to fraction form
    557,353.37/769,118.97 = 302,703.95/x
  3. Step 3: Cross multiply
    557,353.37x = 769,118.97 × 302,703.95
  4. Step 4: Simplify right side
    557,353.37x = 232,815,350,238.93
  5. Step 5: Solve for x
    x = 232,815,350,238.93/557,353.37
  6. Step 6: Final answer
    x = 417,715.87

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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.