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Finding the Fourth Proportional to 1,267,952.03, 1,749,769.33 and 687,189.26

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Solution

The fourth proportional to 1,267,952.03, 1,749,769.33 and 687,189.26 is: 948,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,952.03 : 1,749,769.33 = 687,189.26 : x
  2. Step 2: Convert to fraction form
    1,267,952.03/1,749,769.33 = 687,189.26/x
  3. Step 3: Cross multiply
    1,267,952.03x = 1,749,769.33 × 687,189.26
  4. Step 4: Simplify right side
    1,267,952.03x = 1,202,422,692,771.77
  5. Step 5: Solve for x
    x = 1,202,422,692,771.77/1,267,952.03
  6. Step 6: Final answer
    x = 948,318.75

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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.