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Finding the Fourth Proportional to 647,750.16, 893,896.82 and 361,288.80

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Solution

The fourth proportional to 647,750.16, 893,896.82 and 361,288.80 is: 498,579.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,750.16 : 893,896.82 = 361,288.80 : x
  2. Step 2: Convert to fraction form
    647,750.16/893,896.82 = 361,288.80/x
  3. Step 3: Cross multiply
    647,750.16x = 893,896.82 × 361,288.80
  4. Step 4: Simplify right side
    647,750.16x = 322,954,909,421.62
  5. Step 5: Solve for x
    x = 322,954,909,421.62/647,750.16
  6. Step 6: Final answer
    x = 498,579.44

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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.