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Finding the Fourth Proportional to 1,191,699.91, 1,787,560.80 and 848,696.30

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Solution

The fourth proportional to 1,191,699.91, 1,787,560.80 and 848,696.30 is: 1,273,052.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,699.91 : 1,787,560.80 = 848,696.30 : x
  2. Step 2: Convert to fraction form
    1,191,699.91/1,787,560.80 = 848,696.30/x
  3. Step 3: Cross multiply
    1,191,699.91x = 1,787,560.80 × 848,696.30
  4. Step 4: Simplify right side
    1,191,699.91x = 1,517,096,236,985.04
  5. Step 5: Solve for x
    x = 1,517,096,236,985.04/1,191,699.91
  6. Step 6: Final answer
    x = 1,273,052.24

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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.