Home / 669,302.71-1,003,741.23-219,919.57

Finding the Fourth Proportional to 669,302.71, 1,003,741.23 and 219,919.57

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Solution

The fourth proportional to 669,302.71, 1,003,741.23 and 219,919.57 is: 329,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,302.71 : 1,003,741.23 = 219,919.57 : x
  2. Step 2: Convert to fraction form
    669,302.71/1,003,741.23 = 219,919.57/x
  3. Step 3: Cross multiply
    669,302.71x = 1,003,741.23 × 219,919.57
  4. Step 4: Simplify right side
    669,302.71x = 220,742,339,692.87
  5. Step 5: Solve for x
    x = 220,742,339,692.87/669,302.71
  6. Step 6: Final answer
    x = 329,809.42

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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.