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Finding the Fourth Proportional to 659,571.40, 986,246.70 and 491,609.80

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Solution

The fourth proportional to 659,571.40, 986,246.70 and 491,609.80 is: 735,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,571.40 : 986,246.70 = 491,609.80 : x
  2. Step 2: Convert to fraction form
    659,571.40/986,246.70 = 491,609.80/x
  3. Step 3: Cross multiply
    659,571.40x = 986,246.70 × 491,609.80
  4. Step 4: Simplify right side
    659,571.40x = 484,848,542,937.66
  5. Step 5: Solve for x
    x = 484,848,542,937.66/659,571.40
  6. Step 6: Final answer
    x = 735,096.37

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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.