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Finding the Fourth Proportional to 1,428,540.03, 1,971,473.82 and 944,265.33

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Solution

The fourth proportional to 1,428,540.03, 1,971,473.82 and 944,265.33 is: 1,303,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,540.03 : 1,971,473.82 = 944,265.33 : x
  2. Step 2: Convert to fraction form
    1,428,540.03/1,971,473.82 = 944,265.33/x
  3. Step 3: Cross multiply
    1,428,540.03x = 1,971,473.82 × 944,265.33
  4. Step 4: Simplify right side
    1,428,540.03x = 1,861,594,362,649.97
  5. Step 5: Solve for x
    x = 1,861,594,362,649.97/1,428,540.03
  6. Step 6: Final answer
    x = 1,303,144.70

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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.