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Finding the Fourth Proportional to 635,122.80, 876,479.40 and 348,669

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Solution

The fourth proportional to 635,122.80, 876,479.40 and 348,669 is: 481,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,122.80 : 876,479.40 = 348,669 : x
  2. Step 2: Convert to fraction form
    635,122.80/876,479.40 = 348,669/x
  3. Step 3: Cross multiply
    635,122.80x = 876,479.40 × 348,669
  4. Step 4: Simplify right side
    635,122.80x = 305,601,195,918.60
  5. Step 5: Solve for x
    x = 305,601,195,918.60/635,122.80
  6. Step 6: Final answer
    x = 481,168.67

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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.