Home / 738,269.20-1,107,403.80-419,404.60

Finding the Fourth Proportional to 738,269.20, 1,107,403.80 and 419,404.60

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Solution

The fourth proportional to 738,269.20, 1,107,403.80 and 419,404.60 is: 629,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,269.20 : 1,107,403.80 = 419,404.60 : x
  2. Step 2: Convert to fraction form
    738,269.20/1,107,403.80 = 419,404.60/x
  3. Step 3: Cross multiply
    738,269.20x = 1,107,403.80 × 419,404.60
  4. Step 4: Simplify right side
    738,269.20x = 464,450,247,777.48
  5. Step 5: Solve for x
    x = 464,450,247,777.48/738,269.20
  6. Step 6: Final answer
    x = 629,106.90

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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.