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Finding the Fourth Proportional to 691,231.60, 970,523.60 and 691,231.60

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Solution

The fourth proportional to 691,231.60, 970,523.60 and 691,231.60 is: 970,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,231.60 : 970,523.60 = 691,231.60 : x
  2. Step 2: Convert to fraction form
    691,231.60/970,523.60 = 691,231.60/x
  3. Step 3: Cross multiply
    691,231.60x = 970,523.60 × 691,231.60
  4. Step 4: Simplify right side
    691,231.60x = 670,856,580,865.76
  5. Step 5: Solve for x
    x = 670,856,580,865.76/691,231.60
  6. Step 6: Final answer
    x = 970,523.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.