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Finding the Fourth Proportional to 669,794.10, 1,004,674.95 and 403,352.70

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Solution

The fourth proportional to 669,794.10, 1,004,674.95 and 403,352.70 is: 605,019.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,794.10 : 1,004,674.95 = 403,352.70 : x
  2. Step 2: Convert to fraction form
    669,794.10/1,004,674.95 = 403,352.70/x
  3. Step 3: Cross multiply
    669,794.10x = 1,004,674.95 × 403,352.70
  4. Step 4: Simplify right side
    669,794.10x = 405,238,353,704.87
  5. Step 5: Solve for x
    x = 405,238,353,704.87/669,794.10
  6. Step 6: Final answer
    x = 605,019.29

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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.