Home / 627,498.60-865,914.92-355,569.75

Finding the Fourth Proportional to 627,498.60, 865,914.92 and 355,569.75

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Solution

The fourth proportional to 627,498.60, 865,914.92 and 355,569.75 is: 490,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,498.60 : 865,914.92 = 355,569.75 : x
  2. Step 2: Convert to fraction form
    627,498.60/865,914.92 = 355,569.75/x
  3. Step 3: Cross multiply
    627,498.60x = 865,914.92 × 355,569.75
  4. Step 4: Simplify right side
    627,498.60x = 307,893,149,847.82
  5. Step 5: Solve for x
    x = 307,893,149,847.82/627,498.60
  6. Step 6: Final answer
    x = 490,667.47

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1.5x scale

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.