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Finding the Fourth Proportional to 647,011.44, 892,879.34 and 375,240.47

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Solution

The fourth proportional to 647,011.44, 892,879.34 and 375,240.47 is: 517,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,011.44 : 892,879.34 = 375,240.47 : x
  2. Step 2: Convert to fraction form
    647,011.44/892,879.34 = 375,240.47/x
  3. Step 3: Cross multiply
    647,011.44x = 892,879.34 × 375,240.47
  4. Step 4: Simplify right side
    647,011.44x = 335,044,456,854.29
  5. Step 5: Solve for x
    x = 335,044,456,854.29/647,011.44
  6. Step 6: Final answer
    x = 517,833.90

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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.