Home / 699,487.20-1,046,811.60-419,205.60

Finding the Fourth Proportional to 699,487.20, 1,046,811.60 and 419,205.60

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Solution

The fourth proportional to 699,487.20, 1,046,811.60 and 419,205.60 is: 627,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,487.20 : 1,046,811.60 = 419,205.60 : x
  2. Step 2: Convert to fraction form
    699,487.20/1,046,811.60 = 419,205.60/x
  3. Step 3: Cross multiply
    699,487.20x = 1,046,811.60 × 419,205.60
  4. Step 4: Simplify right side
    699,487.20x = 438,829,284,864.96
  5. Step 5: Solve for x
    x = 438,829,284,864.96/699,487.20
  6. Step 6: Final answer
    x = 627,358.56

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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.