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Finding the Fourth Proportional to 627,820.60, 941,730.90 and 503,404.60

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Solution

The fourth proportional to 627,820.60, 941,730.90 and 503,404.60 is: 755,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,820.60 : 941,730.90 = 503,404.60 : x
  2. Step 2: Convert to fraction form
    627,820.60/941,730.90 = 503,404.60/x
  3. Step 3: Cross multiply
    627,820.60x = 941,730.90 × 503,404.60
  4. Step 4: Simplify right side
    627,820.60x = 474,071,667,022.14
  5. Step 5: Solve for x
    x = 474,071,667,022.14/627,820.60
  6. Step 6: Final answer
    x = 755,106.90

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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.