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Finding the Fourth Proportional to 1,297,291.87, 1,945,944.73 and 850,839.91

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Solution

The fourth proportional to 1,297,291.87, 1,945,944.73 and 850,839.91 is: 1,276,264.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,291.87 : 1,945,944.73 = 850,839.91 : x
  2. Step 2: Convert to fraction form
    1,297,291.87/1,945,944.73 = 850,839.91/x
  3. Step 3: Cross multiply
    1,297,291.87x = 1,945,944.73 × 850,839.91
  4. Step 4: Simplify right side
    1,297,291.87x = 1,655,687,424,954.25
  5. Step 5: Solve for x
    x = 1,655,687,424,954.25/1,297,291.87
  6. Step 6: Final answer
    x = 1,276,264.40

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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.