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Finding the Fourth Proportional to 647,984.10, 894,200.80 and 361,496.82

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Solution

The fourth proportional to 647,984.10, 894,200.80 and 361,496.82 is: 498,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,984.10 : 894,200.80 = 361,496.82 : x
  2. Step 2: Convert to fraction form
    647,984.10/894,200.80 = 361,496.82/x
  3. Step 3: Cross multiply
    647,984.10x = 894,200.80 × 361,496.82
  4. Step 4: Simplify right side
    647,984.10x = 323,250,745,641.46
  5. Step 5: Solve for x
    x = 323,250,745,641.46/647,984.10
  6. Step 6: Final answer
    x = 498,855.98

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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.