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Finding the Fourth Proportional to 603,121.50, 903,304.44 and 287,799.84

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Solution

The fourth proportional to 603,121.50, 903,304.44 and 287,799.84 is: 431,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,121.50 : 903,304.44 = 287,799.84 : x
  2. Step 2: Convert to fraction form
    603,121.50/903,304.44 = 287,799.84/x
  3. Step 3: Cross multiply
    603,121.50x = 903,304.44 × 287,799.84
  4. Step 4: Simplify right side
    603,121.50x = 259,970,873,303.29
  5. Step 5: Solve for x
    x = 259,970,873,303.29/603,121.50
  6. Step 6: Final answer
    x = 431,042.29

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1.5x scale

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.