Home / 670,311.20-1,004,883.60-403,788.80

Finding the Fourth Proportional to 670,311.20, 1,004,883.60 and 403,788.80

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Solution

The fourth proportional to 670,311.20, 1,004,883.60 and 403,788.80 is: 605,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,311.20 : 1,004,883.60 = 403,788.80 : x
  2. Step 2: Convert to fraction form
    670,311.20/1,004,883.60 = 403,788.80/x
  3. Step 3: Cross multiply
    670,311.20x = 1,004,883.60 × 403,788.80
  4. Step 4: Simplify right side
    670,311.20x = 405,760,742,983.68
  5. Step 5: Solve for x
    x = 405,760,742,983.68/670,311.20
  6. Step 6: Final answer
    x = 605,331.89

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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.