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Finding the Fourth Proportional to 665,006.80, 996,829.80 and 327,528.40

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Solution

The fourth proportional to 665,006.80, 996,829.80 and 327,528.40 is: 490,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,006.80 : 996,829.80 = 327,528.40 : x
  2. Step 2: Convert to fraction form
    665,006.80/996,829.80 = 327,528.40/x
  3. Step 3: Cross multiply
    665,006.80x = 996,829.80 × 327,528.40
  4. Step 4: Simplify right side
    665,006.80x = 326,490,069,466.32
  5. Step 5: Solve for x
    x = 326,490,069,466.32/665,006.80
  6. Step 6: Final answer
    x = 490,957.49

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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.