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Finding the Fourth Proportional to 346,989.20, 519,706.20 and 284,781.20

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Solution

The fourth proportional to 346,989.20, 519,706.20 and 284,781.20 is: 426,533.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,989.20 : 519,706.20 = 284,781.20 : x
  2. Step 2: Convert to fraction form
    346,989.20/519,706.20 = 284,781.20/x
  3. Step 3: Cross multiply
    346,989.20x = 519,706.20 × 284,781.20
  4. Step 4: Simplify right side
    346,989.20x = 148,002,555,283.44
  5. Step 5: Solve for x
    x = 148,002,555,283.44/346,989.20
  6. Step 6: Final answer
    x = 426,533.61

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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.