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Finding the Fourth Proportional to 628,169.60, 941,962.80 and 273,000.80

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Solution

The fourth proportional to 628,169.60, 941,962.80 and 273,000.80 is: 409,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,169.60 : 941,962.80 = 273,000.80 : x
  2. Step 2: Convert to fraction form
    628,169.60/941,962.80 = 273,000.80/x
  3. Step 3: Cross multiply
    628,169.60x = 941,962.80 × 273,000.80
  4. Step 4: Simplify right side
    628,169.60x = 257,156,597,970.24
  5. Step 5: Solve for x
    x = 257,156,597,970.24/628,169.60
  6. Step 6: Final answer
    x = 409,374.47

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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.