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Finding the Fourth Proportional to 627,255.31, 865,616.47 and 340,775.32

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Solution

The fourth proportional to 627,255.31, 865,616.47 and 340,775.32 is: 470,272.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,255.31 : 865,616.47 = 340,775.32 : x
  2. Step 2: Convert to fraction form
    627,255.31/865,616.47 = 340,775.32/x
  3. Step 3: Cross multiply
    627,255.31x = 865,616.47 × 340,775.32
  4. Step 4: Simplify right side
    627,255.31x = 294,980,729,561.52
  5. Step 5: Solve for x
    x = 294,980,729,561.52/627,255.31
  6. Step 6: Final answer
    x = 470,272.19

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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.