Home / 686,566.21-1,029,708.58-259,954.86

Finding the Fourth Proportional to 686,566.21, 1,029,708.58 and 259,954.86

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Solution

The fourth proportional to 686,566.21, 1,029,708.58 and 259,954.86 is: 389,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,566.21 : 1,029,708.58 = 259,954.86 : x
  2. Step 2: Convert to fraction form
    686,566.21/1,029,708.58 = 259,954.86/x
  3. Step 3: Cross multiply
    686,566.21x = 1,029,708.58 × 259,954.86
  4. Step 4: Simplify right side
    686,566.21x = 267,677,749,754.70
  5. Step 5: Solve for x
    x = 267,677,749,754.70/686,566.21
  6. Step 6: Final answer
    x = 389,879.00

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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.