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Finding the Fourth Proportional to 647,196.30, 893,092.47 and 371,490.46

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Solution

The fourth proportional to 647,196.30, 893,092.47 and 371,490.46 is: 512,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,196.30 : 893,092.47 = 371,490.46 : x
  2. Step 2: Convert to fraction form
    647,196.30/893,092.47 = 371,490.46/x
  3. Step 3: Cross multiply
    647,196.30x = 893,092.47 × 371,490.46
  4. Step 4: Simplify right side
    647,196.30x = 331,775,332,502.84
  5. Step 5: Solve for x
    x = 331,775,332,502.84/647,196.30
  6. Step 6: Final answer
    x = 512,634.78

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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.