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Finding the Fourth Proportional to 635,480.76, 953,338.50 and 209,040.60

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Solution

The fourth proportional to 635,480.76, 953,338.50 and 209,040.60 is: 313,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,480.76 : 953,338.50 = 209,040.60 : x
  2. Step 2: Convert to fraction form
    635,480.76/953,338.50 = 209,040.60/x
  3. Step 3: Cross multiply
    635,480.76x = 953,338.50 × 209,040.60
  4. Step 4: Simplify right side
    635,480.76x = 199,286,452,043.10
  5. Step 5: Solve for x
    x = 199,286,452,043.10/635,480.76
  6. Step 6: Final answer
    x = 313,599.51

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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.