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Finding the Fourth Proportional to 647,010.94, 892,878.64 and 375,239.97

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Solution

The fourth proportional to 647,010.94, 892,878.64 and 375,239.97 is: 517,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,010.94 : 892,878.64 = 375,239.97 : x
  2. Step 2: Convert to fraction form
    647,010.94/892,878.64 = 375,239.97/x
  3. Step 3: Cross multiply
    647,010.94x = 892,878.64 × 375,239.97
  4. Step 4: Simplify right side
    647,010.94x = 335,043,754,087.24
  5. Step 5: Solve for x
    x = 335,043,754,087.24/647,010.94
  6. Step 6: Final answer
    x = 517,833.21

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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.