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Finding the Fourth Proportional to 603,627.87, 831,952.04 and 442,139.79

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Solution

The fourth proportional to 603,627.87, 831,952.04 and 442,139.79 is: 609,380.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,627.87 : 831,952.04 = 442,139.79 : x
  2. Step 2: Convert to fraction form
    603,627.87/831,952.04 = 442,139.79/x
  3. Step 3: Cross multiply
    603,627.87x = 831,952.04 × 442,139.79
  4. Step 4: Simplify right side
    603,627.87x = 367,839,098,044.97
  5. Step 5: Solve for x
    x = 367,839,098,044.97/603,627.87
  6. Step 6: Final answer
    x = 609,380.57

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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.