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Finding the Fourth Proportional to 647,753.94, 893,901.63 and 361,292.49

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Solution

The fourth proportional to 647,753.94, 893,901.63 and 361,292.49 is: 498,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,753.94 : 893,901.63 = 361,292.49 : x
  2. Step 2: Convert to fraction form
    647,753.94/893,901.63 = 361,292.49/x
  3. Step 3: Cross multiply
    647,753.94x = 893,901.63 × 361,292.49
  4. Step 4: Simplify right side
    647,753.94x = 322,959,945,717.76
  5. Step 5: Solve for x
    x = 322,959,945,717.76/647,753.94
  6. Step 6: Final answer
    x = 498,584.30

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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.