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Finding the Fourth Proportional to 720,304.90, 1,081,135.32 and 365,573.50

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Solution

The fourth proportional to 720,304.90, 1,081,135.32 and 365,573.50 is: 548,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,304.90 : 1,081,135.32 = 365,573.50 : x
  2. Step 2: Convert to fraction form
    720,304.90/1,081,135.32 = 365,573.50/x
  3. Step 3: Cross multiply
    720,304.90x = 1,081,135.32 × 365,573.50
  4. Step 4: Simplify right side
    720,304.90x = 395,234,422,906.02
  5. Step 5: Solve for x
    x = 395,234,422,906.02/720,304.90
  6. Step 6: Final answer
    x = 548,704.34

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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.