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Finding the Fourth Proportional to 737,860.86, 1,018,249.99 and 427,823.64

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Solution

The fourth proportional to 737,860.86, 1,018,249.99 and 427,823.64 is: 590,397.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,860.86 : 1,018,249.99 = 427,823.64 : x
  2. Step 2: Convert to fraction form
    737,860.86/1,018,249.99 = 427,823.64/x
  3. Step 3: Cross multiply
    737,860.86x = 1,018,249.99 × 427,823.64
  4. Step 4: Simplify right side
    737,860.86x = 435,631,416,082.21
  5. Step 5: Solve for x
    x = 435,631,416,082.21/737,860.86
  6. Step 6: Final answer
    x = 590,397.78

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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.