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Finding the Fourth Proportional to 668,959.05, 923,165.91 and 363,035.35

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Solution

The fourth proportional to 668,959.05, 923,165.91 and 363,035.35 is: 500,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,959.05 : 923,165.91 = 363,035.35 : x
  2. Step 2: Convert to fraction form
    668,959.05/923,165.91 = 363,035.35/x
  3. Step 3: Cross multiply
    668,959.05x = 923,165.91 × 363,035.35
  4. Step 4: Simplify right side
    668,959.05x = 335,141,860,398.88
  5. Step 5: Solve for x
    x = 335,141,860,398.88/668,959.05
  6. Step 6: Final answer
    x = 500,990.10

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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.