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Finding the Fourth Proportional to 679,632, 937,893.24 and 377,826

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Solution

The fourth proportional to 679,632, 937,893.24 and 377,826 is: 521,400.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,632 : 937,893.24 = 377,826 : x
  2. Step 2: Convert to fraction form
    679,632/937,893.24 = 377,826/x
  3. Step 3: Cross multiply
    679,632x = 937,893.24 × 377,826
  4. Step 4: Simplify right side
    679,632x = 354,360,451,296.24
  5. Step 5: Solve for x
    x = 354,360,451,296.24/679,632
  6. Step 6: Final answer
    x = 521,400.48

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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.