Home / 670,216.40-1,005,324.60-403,839.80

Finding the Fourth Proportional to 670,216.40, 1,005,324.60 and 403,839.80

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Solution

The fourth proportional to 670,216.40, 1,005,324.60 and 403,839.80 is: 605,759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,216.40 : 1,005,324.60 = 403,839.80 : x
  2. Step 2: Convert to fraction form
    670,216.40/1,005,324.60 = 403,839.80/x
  3. Step 3: Cross multiply
    670,216.40x = 1,005,324.60 × 403,839.80
  4. Step 4: Simplify right side
    670,216.40x = 405,990,085,399.08
  5. Step 5: Solve for x
    x = 405,990,085,399.08/670,216.40
  6. Step 6: Final answer
    x = 605,759.70

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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.