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Finding the Fourth Proportional to 647,216.80, 893,163.33 and 360,755.05

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Solution

The fourth proportional to 647,216.80, 893,163.33 and 360,755.05 is: 497,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,216.80 : 893,163.33 = 360,755.05 : x
  2. Step 2: Convert to fraction form
    647,216.80/893,163.33 = 360,755.05/x
  3. Step 3: Cross multiply
    647,216.80x = 893,163.33 × 360,755.05
  4. Step 4: Simplify right side
    647,216.80x = 322,213,181,772.32
  5. Step 5: Solve for x
    x = 322,213,181,772.32/647,216.80
  6. Step 6: Final answer
    x = 497,844.28

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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.