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Finding the Fourth Proportional to 647,872.04, 894,064.85 and 361,410.68

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Solution

The fourth proportional to 647,872.04, 894,064.85 and 361,410.68 is: 498,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,872.04 : 894,064.85 = 361,410.68 : x
  2. Step 2: Convert to fraction form
    647,872.04/894,064.85 = 361,410.68/x
  3. Step 3: Cross multiply
    647,872.04x = 894,064.85 × 361,410.68
  4. Step 4: Simplify right side
    647,872.04x = 323,124,579,125.22
  5. Step 5: Solve for x
    x = 323,124,579,125.22/647,872.04
  6. Step 6: Final answer
    x = 498,747.53

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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.