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Finding the Fourth Proportional to 540,118.60, 807,845.10 and 456,137.80

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Solution

The fourth proportional to 540,118.60, 807,845.10 and 456,137.80 is: 682,236.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,118.60 : 807,845.10 = 456,137.80 : x
  2. Step 2: Convert to fraction form
    540,118.60/807,845.10 = 456,137.80/x
  3. Step 3: Cross multiply
    540,118.60x = 807,845.10 × 456,137.80
  4. Step 4: Simplify right side
    540,118.60x = 368,488,686,654.78
  5. Step 5: Solve for x
    x = 368,488,686,654.78/540,118.60
  6. Step 6: Final answer
    x = 682,236.62

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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.