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Finding the Fourth Proportional to 660,096.90, 990,801.45 and 323,517.60

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Solution

The fourth proportional to 660,096.90, 990,801.45 and 323,517.60 is: 485,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,096.90 : 990,801.45 = 323,517.60 : x
  2. Step 2: Convert to fraction form
    660,096.90/990,801.45 = 323,517.60/x
  3. Step 3: Cross multiply
    660,096.90x = 990,801.45 × 323,517.60
  4. Step 4: Simplify right side
    660,096.90x = 320,541,707,180.52
  5. Step 5: Solve for x
    x = 320,541,707,180.52/660,096.90
  6. Step 6: Final answer
    x = 485,597.96

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1.5x scale

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.