Home / 686,564.64-1,029,706.20-259,953.30

Finding the Fourth Proportional to 686,564.64, 1,029,706.20 and 259,953.30

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Solution

The fourth proportional to 686,564.64, 1,029,706.20 and 259,953.30 is: 389,876.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,564.64 : 1,029,706.20 = 259,953.30 : x
  2. Step 2: Convert to fraction form
    686,564.64/1,029,706.20 = 259,953.30/x
  3. Step 3: Cross multiply
    686,564.64x = 1,029,706.20 × 259,953.30
  4. Step 4: Simplify right side
    686,564.64x = 267,675,524,720.46
  5. Step 5: Solve for x
    x = 267,675,524,720.46/686,564.64
  6. Step 6: Final answer
    x = 389,876.65

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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.