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Finding the Fourth Proportional to 647,959.50, 894,181.55 and 361,479.24

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Solution

The fourth proportional to 647,959.50, 894,181.55 and 361,479.24 is: 498,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,959.50 : 894,181.55 = 361,479.24 : x
  2. Step 2: Convert to fraction form
    647,959.50/894,181.55 = 361,479.24/x
  3. Step 3: Cross multiply
    647,959.50x = 894,181.55 × 361,479.24
  4. Step 4: Simplify right side
    647,959.50x = 323,228,065,308.63
  5. Step 5: Solve for x
    x = 323,228,065,308.63/647,959.50
  6. Step 6: Final answer
    x = 498,839.92

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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.