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Finding the Fourth Proportional to 452,959.80, 679,958.10 and 266,076.60

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Solution

The fourth proportional to 452,959.80, 679,958.10 and 266,076.60 is: 399,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,959.80 : 679,958.10 = 266,076.60 : x
  2. Step 2: Convert to fraction form
    452,959.80/679,958.10 = 266,076.60/x
  3. Step 3: Cross multiply
    452,959.80x = 679,958.10 × 266,076.60
  4. Step 4: Simplify right side
    452,959.80x = 180,920,939,390.46
  5. Step 5: Solve for x
    x = 180,920,939,390.46/452,959.80
  6. Step 6: Final answer
    x = 399,419.42

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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.