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Finding the Fourth Proportional to 468,915.04, 647,103.12 and 275,284.84

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Solution

The fourth proportional to 468,915.04, 647,103.12 and 275,284.84 is: 379,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,915.04 : 647,103.12 = 275,284.84 : x
  2. Step 2: Convert to fraction form
    468,915.04/647,103.12 = 275,284.84/x
  3. Step 3: Cross multiply
    468,915.04x = 647,103.12 × 275,284.84
  4. Step 4: Simplify right side
    468,915.04x = 178,137,678,852.70
  5. Step 5: Solve for x
    x = 178,137,678,852.70/468,915.04
  6. Step 6: Final answer
    x = 379,893.29

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1.5x scale

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.