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Finding the Fourth Proportional to 627,852.64, 940,852.60 and 371,420

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Solution

The fourth proportional to 627,852.64, 940,852.60 and 371,420 is: 556,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,852.64 : 940,852.60 = 371,420 : x
  2. Step 2: Convert to fraction form
    627,852.64/940,852.60 = 371,420/x
  3. Step 3: Cross multiply
    627,852.64x = 940,852.60 × 371,420
  4. Step 4: Simplify right side
    627,852.64x = 349,451,472,692
  5. Step 5: Solve for x
    x = 349,451,472,692/627,852.64
  6. Step 6: Final answer
    x = 556,581.99

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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.