Home / 669,139.20-1,003,417.20-269,647.20

Finding the Fourth Proportional to 669,139.20, 1,003,417.20 and 269,647.20

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Solution

The fourth proportional to 669,139.20, 1,003,417.20 and 269,647.20 is: 404,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,139.20 : 1,003,417.20 = 269,647.20 : x
  2. Step 2: Convert to fraction form
    669,139.20/1,003,417.20 = 269,647.20/x
  3. Step 3: Cross multiply
    669,139.20x = 1,003,417.20 × 269,647.20
  4. Step 4: Simplify right side
    669,139.20x = 270,568,638,411.84
  5. Step 5: Solve for x
    x = 270,568,638,411.84/669,139.20
  6. Step 6: Final answer
    x = 404,353.29

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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.