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Finding the Fourth Proportional to 659,175.40, 988,532.70 and 343,527.40

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Solution

The fourth proportional to 659,175.40, 988,532.70 and 343,527.40 is: 515,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,175.40 : 988,532.70 = 343,527.40 : x
  2. Step 2: Convert to fraction form
    659,175.40/988,532.70 = 343,527.40/x
  3. Step 3: Cross multiply
    659,175.40x = 988,532.70 × 343,527.40
  4. Step 4: Simplify right side
    659,175.40x = 339,588,068,245.98
  5. Step 5: Solve for x
    x = 339,588,068,245.98/659,175.40
  6. Step 6: Final answer
    x = 515,171.03

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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.