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Finding the Fourth Proportional to 707,435.84, 1,061,361.12 and 287,013.44

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Solution

The fourth proportional to 707,435.84, 1,061,361.12 and 287,013.44 is: 430,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,435.84 : 1,061,361.12 = 287,013.44 : x
  2. Step 2: Convert to fraction form
    707,435.84/1,061,361.12 = 287,013.44/x
  3. Step 3: Cross multiply
    707,435.84x = 1,061,361.12 × 287,013.44
  4. Step 4: Simplify right side
    707,435.84x = 304,624,906,133.45
  5. Step 5: Solve for x
    x = 304,624,906,133.45/707,435.84
  6. Step 6: Final answer
    x = 430,604.29

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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.