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Finding the Fourth Proportional to 617,338.20, 926,007.30 and 351,617.70

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Solution

The fourth proportional to 617,338.20, 926,007.30 and 351,617.70 is: 527,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,338.20 : 926,007.30 = 351,617.70 : x
  2. Step 2: Convert to fraction form
    617,338.20/926,007.30 = 351,617.70/x
  3. Step 3: Cross multiply
    617,338.20x = 926,007.30 × 351,617.70
  4. Step 4: Simplify right side
    617,338.20x = 325,600,557,009.21
  5. Step 5: Solve for x
    x = 325,600,557,009.21/617,338.20
  6. Step 6: Final answer
    x = 527,426.55

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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.