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Finding the Fourth Proportional to 879,777, 1,214,092.26 and 477,369

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Solution

The fourth proportional to 879,777, 1,214,092.26 and 477,369 is: 658,769.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,777 : 1,214,092.26 = 477,369 : x
  2. Step 2: Convert to fraction form
    879,777/1,214,092.26 = 477,369/x
  3. Step 3: Cross multiply
    879,777x = 1,214,092.26 × 477,369
  4. Step 4: Simplify right side
    879,777x = 579,570,008,063.94
  5. Step 5: Solve for x
    x = 579,570,008,063.94/879,777
  6. Step 6: Final answer
    x = 658,769.22

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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.