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Finding the Fourth Proportional to 627,816.62, 940,798.65 and 371,384.04

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Solution

The fourth proportional to 627,816.62, 940,798.65 and 371,384.04 is: 556,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,816.62 : 940,798.65 = 371,384.04 : x
  2. Step 2: Convert to fraction form
    627,816.62/940,798.65 = 371,384.04/x
  3. Step 3: Cross multiply
    627,816.62x = 940,798.65 × 371,384.04
  4. Step 4: Simplify right side
    627,816.62x = 349,397,601,003.20
  5. Step 5: Solve for x
    x = 349,397,601,003.20/627,816.62
  6. Step 6: Final answer
    x = 556,528.11

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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.