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Finding the Fourth Proportional to 647,945.78, 894,162.44 and 361,466.12

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Solution

The fourth proportional to 647,945.78, 894,162.44 and 361,466.12 is: 498,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,945.78 : 894,162.44 = 361,466.12 : x
  2. Step 2: Convert to fraction form
    647,945.78/894,162.44 = 361,466.12/x
  3. Step 3: Cross multiply
    647,945.78x = 894,162.44 × 361,466.12
  4. Step 4: Simplify right side
    647,945.78x = 323,209,427,836.53
  5. Step 5: Solve for x
    x = 323,209,427,836.53/647,945.78
  6. Step 6: Final answer
    x = 498,821.72

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1.5x scale

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.