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Finding the Fourth Proportional to 668,810.13, 1,003,248 and 269,396.97

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Solution

The fourth proportional to 668,810.13, 1,003,248 and 269,396.97 is: 404,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,810.13 : 1,003,248 = 269,396.97 : x
  2. Step 2: Convert to fraction form
    668,810.13/1,003,248 = 269,396.97/x
  3. Step 3: Cross multiply
    668,810.13x = 1,003,248 × 269,396.97
  4. Step 4: Simplify right side
    668,810.13x = 270,271,971,358.56
  5. Step 5: Solve for x
    x = 270,271,971,358.56/668,810.13
  6. Step 6: Final answer
    x = 404,108.67

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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.