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Finding the Fourth Proportional to 635,401.73, 953,102.93 and 398,910.48

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Solution

The fourth proportional to 635,401.73, 953,102.93 and 398,910.48 is: 598,365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,401.73 : 953,102.93 = 398,910.48 : x
  2. Step 2: Convert to fraction form
    635,401.73/953,102.93 = 398,910.48/x
  3. Step 3: Cross multiply
    635,401.73x = 953,102.93 × 398,910.48
  4. Step 4: Simplify right side
    635,401.73x = 380,202,747,295.71
  5. Step 5: Solve for x
    x = 380,202,747,295.71/635,401.73
  6. Step 6: Final answer
    x = 598,365.93

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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.