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Finding the Fourth Proportional to 473,273.85, 653,040.81 and 279,654.60

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Solution

The fourth proportional to 473,273.85, 653,040.81 and 279,654.60 is: 385,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,273.85 : 653,040.81 = 279,654.60 : x
  2. Step 2: Convert to fraction form
    473,273.85/653,040.81 = 279,654.60/x
  3. Step 3: Cross multiply
    473,273.85x = 653,040.81 × 279,654.60
  4. Step 4: Simplify right side
    473,273.85x = 182,625,866,504.23
  5. Step 5: Solve for x
    x = 182,625,866,504.23/473,273.85
  6. Step 6: Final answer
    x = 385,877.79

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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.