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Finding the Fourth Proportional to 551,319.62, 760,797.50 and 321,889.64

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Solution

The fourth proportional to 551,319.62, 760,797.50 and 321,889.64 is: 444,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,319.62 : 760,797.50 = 321,889.64 : x
  2. Step 2: Convert to fraction form
    551,319.62/760,797.50 = 321,889.64/x
  3. Step 3: Cross multiply
    551,319.62x = 760,797.50 × 321,889.64
  4. Step 4: Simplify right side
    551,319.62x = 244,892,827,974.46
  5. Step 5: Solve for x
    x = 244,892,827,974.46/551,319.62
  6. Step 6: Final answer
    x = 444,193.93

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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.