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Finding the Fourth Proportional to 620,593, 856,418.34 and 337,969

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Solution

The fourth proportional to 620,593, 856,418.34 and 337,969 is: 466,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593 : 856,418.34 = 337,969 : x
  2. Step 2: Convert to fraction form
    620,593/856,418.34 = 337,969/x
  3. Step 3: Cross multiply
    620,593x = 856,418.34 × 337,969
  4. Step 4: Simplify right side
    620,593x = 289,442,849,951.46
  5. Step 5: Solve for x
    x = 289,442,849,951.46/620,593
  6. Step 6: Final answer
    x = 466,397.22

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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.