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Finding the Fourth Proportional to 647,056.08, 892,940.88 and 375,285

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Solution

The fourth proportional to 647,056.08, 892,940.88 and 375,285 is: 517,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,056.08 : 892,940.88 = 375,285 : x
  2. Step 2: Convert to fraction form
    647,056.08/892,940.88 = 375,285/x
  3. Step 3: Cross multiply
    647,056.08x = 892,940.88 × 375,285
  4. Step 4: Simplify right side
    647,056.08x = 335,107,318,150.80
  5. Step 5: Solve for x
    x = 335,107,318,150.80/647,056.08
  6. Step 6: Final answer
    x = 517,895.32

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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.