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Finding the Fourth Proportional to 491,810.60, 737,715.90 and 255,614.60

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Solution

The fourth proportional to 491,810.60, 737,715.90 and 255,614.60 is: 383,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,810.60 : 737,715.90 = 255,614.60 : x
  2. Step 2: Convert to fraction form
    491,810.60/737,715.90 = 255,614.60/x
  3. Step 3: Cross multiply
    491,810.60x = 737,715.90 × 255,614.60
  4. Step 4: Simplify right side
    491,810.60x = 188,570,954,692.14
  5. Step 5: Solve for x
    x = 188,570,954,692.14/491,810.60
  6. Step 6: Final answer
    x = 383,421.90

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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.