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Finding the Fourth Proportional to 683,309.86, 942,974.68 and 377,393.92

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Solution

The fourth proportional to 683,309.86, 942,974.68 and 377,393.92 is: 520,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,309.86 : 942,974.68 = 377,393.92 : x
  2. Step 2: Convert to fraction form
    683,309.86/942,974.68 = 377,393.92/x
  3. Step 3: Cross multiply
    683,309.86x = 942,974.68 × 377,393.92
  4. Step 4: Simplify right side
    683,309.86x = 355,872,910,945.95
  5. Step 5: Solve for x
    x = 355,872,910,945.95/683,309.86
  6. Step 6: Final answer
    x = 520,807.52

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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.