Home / 1,297,074.82-1,946,792.90-690,372.47

Finding the Fourth Proportional to 1,297,074.82, 1,946,792.90 and 690,372.47

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Solution

The fourth proportional to 1,297,074.82, 1,946,792.90 and 690,372.47 is: 1,036,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,074.82 : 1,946,792.90 = 690,372.47 : x
  2. Step 2: Convert to fraction form
    1,297,074.82/1,946,792.90 = 690,372.47/x
  3. Step 3: Cross multiply
    1,297,074.82x = 1,946,792.90 × 690,372.47
  4. Step 4: Simplify right side
    1,297,074.82x = 1,344,012,222,951.46
  5. Step 5: Solve for x
    x = 1,344,012,222,951.46/1,297,074.82
  6. Step 6: Final answer
    x = 1,036,187.12

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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.