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Finding the Fourth Proportional to 611,595.54, 843,973.11 and 339,680.97

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Solution

The fourth proportional to 611,595.54, 843,973.11 and 339,680.97 is: 468,743.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,595.54 : 843,973.11 = 339,680.97 : x
  2. Step 2: Convert to fraction form
    611,595.54/843,973.11 = 339,680.97/x
  3. Step 3: Cross multiply
    611,595.54x = 843,973.11 × 339,680.97
  4. Step 4: Simplify right side
    611,595.54x = 286,681,604,658.72
  5. Step 5: Solve for x
    x = 286,681,604,658.72/611,595.54
  6. Step 6: Final answer
    x = 468,743.78

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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.