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Finding the Fourth Proportional to 647,460.20, 893,453.28 and 360,963.20

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Solution

The fourth proportional to 647,460.20, 893,453.28 and 360,963.20 is: 498,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,460.20 : 893,453.28 = 360,963.20 : x
  2. Step 2: Convert to fraction form
    647,460.20/893,453.28 = 360,963.20/x
  3. Step 3: Cross multiply
    647,460.20x = 893,453.28 × 360,963.20
  4. Step 4: Simplify right side
    647,460.20x = 322,503,754,999.30
  5. Step 5: Solve for x
    x = 322,503,754,999.30/647,460.20
  6. Step 6: Final answer
    x = 498,105.91

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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.