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Finding the Fourth Proportional to 627,847.64, 940,845.10 and 371,415

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Solution

The fourth proportional to 627,847.64, 940,845.10 and 371,415 is: 556,574.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,847.64 : 940,845.10 = 371,415 : x
  2. Step 2: Convert to fraction form
    627,847.64/940,845.10 = 371,415/x
  3. Step 3: Cross multiply
    627,847.64x = 940,845.10 × 371,415
  4. Step 4: Simplify right side
    627,847.64x = 349,443,982,816.50
  5. Step 5: Solve for x
    x = 349,443,982,816.50/627,847.64
  6. Step 6: Final answer
    x = 556,574.49

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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.