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Finding the Fourth Proportional to 647,963.17, 894,189.56 and 361,483.26

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Solution

The fourth proportional to 647,963.17, 894,189.56 and 361,483.26 is: 498,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,963.17 : 894,189.56 = 361,483.26 : x
  2. Step 2: Convert to fraction form
    647,963.17/894,189.56 = 361,483.26/x
  3. Step 3: Cross multiply
    647,963.17x = 894,189.56 × 361,483.26
  4. Step 4: Simplify right side
    647,963.17x = 323,234,557,206.77
  5. Step 5: Solve for x
    x = 323,234,557,206.77/647,963.17
  6. Step 6: Final answer
    x = 498,847.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.