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Finding the Fourth Proportional to 2,660,709, 3,991,098.06 and 887,781

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Solution

The fourth proportional to 2,660,709, 3,991,098.06 and 887,781 is: 1,331,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,709 : 3,991,098.06 = 887,781 : x
  2. Step 2: Convert to fraction form
    2,660,709/3,991,098.06 = 887,781/x
  3. Step 3: Cross multiply
    2,660,709x = 3,991,098.06 × 887,781
  4. Step 4: Simplify right side
    2,660,709x = 3,543,221,026,804.86
  5. Step 5: Solve for x
    x = 3,543,221,026,804.86/2,660,709
  6. Step 6: Final answer
    x = 1,331,683.03

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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.