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Finding the Fourth Proportional to 603,257.64, 831,935.62 and 388,017.96

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Solution

The fourth proportional to 603,257.64, 831,935.62 and 388,017.96 is: 535,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,257.64 : 831,935.62 = 388,017.96 : x
  2. Step 2: Convert to fraction form
    603,257.64/831,935.62 = 388,017.96/x
  3. Step 3: Cross multiply
    603,257.64x = 831,935.62 × 388,017.96
  4. Step 4: Simplify right side
    603,257.64x = 322,805,962,123.74
  5. Step 5: Solve for x
    x = 322,805,962,123.74/603,257.64
  6. Step 6: Final answer
    x = 535,104.64

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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.