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Finding the Fourth Proportional to 923,441.60, 1,385,205.60 and 292,404.80

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Solution

The fourth proportional to 923,441.60, 1,385,205.60 and 292,404.80 is: 438,620.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,441.60 : 1,385,205.60 = 292,404.80 : x
  2. Step 2: Convert to fraction form
    923,441.60/1,385,205.60 = 292,404.80/x
  3. Step 3: Cross multiply
    923,441.60x = 1,385,205.60 × 292,404.80
  4. Step 4: Simplify right side
    923,441.60x = 405,040,766,426.88
  5. Step 5: Solve for x
    x = 405,040,766,426.88/923,441.60
  6. Step 6: Final answer
    x = 438,620.88

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1.5x scale

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.