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Finding the Fourth Proportional to 647,874.04, 894,067.61 and 361,412.68

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Solution

The fourth proportional to 647,874.04, 894,067.61 and 361,412.68 is: 498,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,874.04 : 894,067.61 = 361,412.68 : x
  2. Step 2: Convert to fraction form
    647,874.04/894,067.61 = 361,412.68/x
  3. Step 3: Cross multiply
    647,874.04x = 894,067.61 × 361,412.68
  4. Step 4: Simplify right side
    647,874.04x = 323,127,371,031.30
  5. Step 5: Solve for x
    x = 323,127,371,031.30/647,874.04
  6. Step 6: Final answer
    x = 498,750.30

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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.