Home / 627,254.93-865,629.52-355,322.75

Finding the Fourth Proportional to 627,254.93, 865,629.52 and 355,322.75

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Solution

The fourth proportional to 627,254.93, 865,629.52 and 355,322.75 is: 490,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,254.93 : 865,629.52 = 355,322.75 : x
  2. Step 2: Convert to fraction form
    627,254.93/865,629.52 = 355,322.75/x
  3. Step 3: Cross multiply
    627,254.93x = 865,629.52 × 355,322.75
  4. Step 4: Simplify right side
    627,254.93x = 307,577,856,311.13
  5. Step 5: Solve for x
    x = 307,577,856,311.13/627,254.93
  6. Step 6: Final answer
    x = 490,355.42

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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.