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Finding the Fourth Proportional to 545,830.60, 818,745.90 and 534,166.60

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Solution

The fourth proportional to 545,830.60, 818,745.90 and 534,166.60 is: 801,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,830.60 : 818,745.90 = 534,166.60 : x
  2. Step 2: Convert to fraction form
    545,830.60/818,745.90 = 534,166.60/x
  3. Step 3: Cross multiply
    545,830.60x = 818,745.90 × 534,166.60
  4. Step 4: Simplify right side
    545,830.60x = 437,346,713,666.94
  5. Step 5: Solve for x
    x = 437,346,713,666.94/545,830.60
  6. Step 6: Final answer
    x = 801,249.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.