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Finding the Fourth Proportional to 348,486.40, 523,363.20 and 304,940.80

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Solution

The fourth proportional to 348,486.40, 523,363.20 and 304,940.80 is: 457,965.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,486.40 : 523,363.20 = 304,940.80 : x
  2. Step 2: Convert to fraction form
    348,486.40/523,363.20 = 304,940.80/x
  3. Step 3: Cross multiply
    348,486.40x = 523,363.20 × 304,940.80
  4. Step 4: Simplify right side
    348,486.40x = 159,594,792,898.56
  5. Step 5: Solve for x
    x = 159,594,792,898.56/348,486.40
  6. Step 6: Final answer
    x = 457,965.63

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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.