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Finding the Fourth Proportional to 632,912.40, 949,372.56 and 258,935.40

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Solution

The fourth proportional to 632,912.40, 949,372.56 and 258,935.40 is: 388,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,912.40 : 949,372.56 = 258,935.40 : x
  2. Step 2: Convert to fraction form
    632,912.40/949,372.56 = 258,935.40/x
  3. Step 3: Cross multiply
    632,912.40x = 949,372.56 × 258,935.40
  4. Step 4: Simplify right side
    632,912.40x = 245,826,163,572.62
  5. Step 5: Solve for x
    x = 245,826,163,572.62/632,912.40
  6. Step 6: Final answer
    x = 388,404.72

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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.