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Finding the Fourth Proportional to 659,205.70, 988,614.15 and 259,713.70

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Solution

The fourth proportional to 659,205.70, 988,614.15 and 259,713.70 is: 389,493.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,205.70 : 988,614.15 = 259,713.70 : x
  2. Step 2: Convert to fraction form
    659,205.70/988,614.15 = 259,713.70/x
  3. Step 3: Cross multiply
    659,205.70x = 988,614.15 × 259,713.70
  4. Step 4: Simplify right side
    659,205.70x = 256,756,638,768.86
  5. Step 5: Solve for x
    x = 256,756,638,768.86/659,205.70
  6. Step 6: Final answer
    x = 389,493.96

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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.