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Finding the Fourth Proportional to 386,470.60, 541,611.80 and 386,470.60

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Solution

The fourth proportional to 386,470.60, 541,611.80 and 386,470.60 is: 541,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,470.60 : 541,611.80 = 386,470.60 : x
  2. Step 2: Convert to fraction form
    386,470.60/541,611.80 = 386,470.60/x
  3. Step 3: Cross multiply
    386,470.60x = 541,611.80 × 386,470.60
  4. Step 4: Simplify right side
    386,470.60x = 209,317,037,313.08
  5. Step 5: Solve for x
    x = 209,317,037,313.08/386,470.60
  6. Step 6: Final answer
    x = 541,611.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.