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Finding the Fourth Proportional to 668,752.02, 922,942.62 and 382,217.49

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Solution

The fourth proportional to 668,752.02, 922,942.62 and 382,217.49 is: 527,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,752.02 : 922,942.62 = 382,217.49 : x
  2. Step 2: Convert to fraction form
    668,752.02/922,942.62 = 382,217.49/x
  3. Step 3: Cross multiply
    668,752.02x = 922,942.62 × 382,217.49
  4. Step 4: Simplify right side
    668,752.02x = 352,764,811,630.42
  5. Step 5: Solve for x
    x = 352,764,811,630.42/668,752.02
  6. Step 6: Final answer
    x = 527,497.19

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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.