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Finding the Fourth Proportional to 647,983.10, 894,199.42 and 361,495.82

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Solution

The fourth proportional to 647,983.10, 894,199.42 and 361,495.82 is: 498,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,983.10 : 894,199.42 = 361,495.82 : x
  2. Step 2: Convert to fraction form
    647,983.10/894,199.42 = 361,495.82/x
  3. Step 3: Cross multiply
    647,983.10x = 894,199.42 × 361,495.82
  4. Step 4: Simplify right side
    647,983.10x = 323,249,352,576.42
  5. Step 5: Solve for x
    x = 323,249,352,576.42/647,983.10
  6. Step 6: Final answer
    x = 498,854.60

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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.