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Finding the Fourth Proportional to 603,159.84, 903,361.66 and 287,838.20

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Solution

The fourth proportional to 603,159.84, 903,361.66 and 287,838.20 is: 431,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,159.84 : 903,361.66 = 287,838.20 : x
  2. Step 2: Convert to fraction form
    603,159.84/903,361.66 = 287,838.20/x
  3. Step 3: Cross multiply
    603,159.84x = 903,361.66 × 287,838.20
  4. Step 4: Simplify right side
    603,159.84x = 260,021,994,163.41
  5. Step 5: Solve for x
    x = 260,021,994,163.41/603,159.84
  6. Step 6: Final answer
    x = 431,099.65

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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.