Home / 669,830.60-1,004,729.70-403,389.20

Finding the Fourth Proportional to 669,830.60, 1,004,729.70 and 403,389.20

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Solution

The fourth proportional to 669,830.60, 1,004,729.70 and 403,389.20 is: 605,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,830.60 : 1,004,729.70 = 403,389.20 : x
  2. Step 2: Convert to fraction form
    669,830.60/1,004,729.70 = 403,389.20/x
  3. Step 3: Cross multiply
    669,830.60x = 1,004,729.70 × 403,389.20
  4. Step 4: Simplify right side
    669,830.60x = 405,297,109,899.24
  5. Step 5: Solve for x
    x = 405,297,109,899.24/669,830.60
  6. Step 6: Final answer
    x = 605,074.04

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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.