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Finding the Fourth Proportional to 376,684.80, 565,027.20 and 347,816.40

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Solution

The fourth proportional to 376,684.80, 565,027.20 and 347,816.40 is: 521,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,684.80 : 565,027.20 = 347,816.40 : x
  2. Step 2: Convert to fraction form
    376,684.80/565,027.20 = 347,816.40/x
  3. Step 3: Cross multiply
    376,684.80x = 565,027.20 × 347,816.40
  4. Step 4: Simplify right side
    376,684.80x = 196,525,726,606.08
  5. Step 5: Solve for x
    x = 196,525,726,606.08/376,684.80
  6. Step 6: Final answer
    x = 521,724.60

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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.