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Finding the Fourth Proportional to 660,283.51, 990,294.03 and 323,179.33

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Solution

The fourth proportional to 660,283.51, 990,294.03 and 323,179.33 is: 484,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,283.51 : 990,294.03 = 323,179.33 : x
  2. Step 2: Convert to fraction form
    660,283.51/990,294.03 = 323,179.33/x
  3. Step 3: Cross multiply
    660,283.51x = 990,294.03 × 323,179.33
  4. Step 4: Simplify right side
    660,283.51x = 320,042,561,118.40
  5. Step 5: Solve for x
    x = 320,042,561,118.40/660,283.51
  6. Step 6: Final answer
    x = 484,704.76

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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.