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Finding the Fourth Proportional to 660,284.02, 990,294.78 and 323,179.84

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Solution

The fourth proportional to 660,284.02, 990,294.78 and 323,179.84 is: 484,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,284.02 : 990,294.78 = 323,179.84 : x
  2. Step 2: Convert to fraction form
    660,284.02/990,294.78 = 323,179.84/x
  3. Step 3: Cross multiply
    660,284.02x = 990,294.78 × 323,179.84
  4. Step 4: Simplify right side
    660,284.02x = 320,043,308,553.24
  5. Step 5: Solve for x
    x = 320,043,308,553.24/660,284.02
  6. Step 6: Final answer
    x = 484,705.52

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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.