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Finding the Fourth Proportional to 627,808.60, 941,712.90 and 549,076.60

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Solution

The fourth proportional to 627,808.60, 941,712.90 and 549,076.60 is: 823,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,808.60 : 941,712.90 = 549,076.60 : x
  2. Step 2: Convert to fraction form
    627,808.60/941,712.90 = 549,076.60/x
  3. Step 3: Cross multiply
    627,808.60x = 941,712.90 × 549,076.60
  4. Step 4: Simplify right side
    627,808.60x = 517,072,517,308.14
  5. Step 5: Solve for x
    x = 517,072,517,308.14/627,808.60
  6. Step 6: Final answer
    x = 823,614.90

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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.