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Finding the Fourth Proportional to 1,314,629.85, 1,972,639.07 and 932,845.70

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Solution

The fourth proportional to 1,314,629.85, 1,972,639.07 and 932,845.70 is: 1,399,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,629.85 : 1,972,639.07 = 932,845.70 : x
  2. Step 2: Convert to fraction form
    1,314,629.85/1,972,639.07 = 932,845.70/x
  3. Step 3: Cross multiply
    1,314,629.85x = 1,972,639.07 × 932,845.70
  4. Step 4: Simplify right side
    1,314,629.85x = 1,840,167,874,368.87
  5. Step 5: Solve for x
    x = 1,840,167,874,368.87/1,314,629.85
  6. Step 6: Final answer
    x = 1,399,761.21

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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.