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Finding the Fourth Proportional to 1,294,576.26, 1,787,149.18 and 1,003,544.88

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Solution

The fourth proportional to 1,294,576.26, 1,787,149.18 and 1,003,544.88 is: 1,385,383.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,576.26 : 1,787,149.18 = 1,003,544.88 : x
  2. Step 2: Convert to fraction form
    1,294,576.26/1,787,149.18 = 1,003,544.88/x
  3. Step 3: Cross multiply
    1,294,576.26x = 1,787,149.18 × 1,003,544.88
  4. Step 4: Simplify right side
    1,294,576.26x = 1,793,484,409,385.20
  5. Step 5: Solve for x
    x = 1,793,484,409,385.20/1,294,576.26
  6. Step 6: Final answer
    x = 1,385,383.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.