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Finding the Fourth Proportional to 628,171.60, 941,965.80 and 273,002.80

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Solution

The fourth proportional to 628,171.60, 941,965.80 and 273,002.80 is: 409,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,171.60 : 941,965.80 = 273,002.80 : x
  2. Step 2: Convert to fraction form
    628,171.60/941,965.80 = 273,002.80/x
  3. Step 3: Cross multiply
    628,171.60x = 941,965.80 × 273,002.80
  4. Step 4: Simplify right side
    628,171.60x = 257,159,300,904.24
  5. Step 5: Solve for x
    x = 257,159,300,904.24/628,171.60
  6. Step 6: Final answer
    x = 409,377.47

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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.