Home / 627,029.36-865,320.96-355,091.41

Finding the Fourth Proportional to 627,029.36, 865,320.96 and 355,091.41

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Solution

The fourth proportional to 627,029.36, 865,320.96 and 355,091.41 is: 490,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,029.36 : 865,320.96 = 355,091.41 : x
  2. Step 2: Convert to fraction form
    627,029.36/865,320.96 = 355,091.41/x
  3. Step 3: Cross multiply
    627,029.36x = 865,320.96 × 355,091.41
  4. Step 4: Simplify right side
    627,029.36x = 307,268,039,788.95
  5. Step 5: Solve for x
    x = 307,268,039,788.95/627,029.36
  6. Step 6: Final answer
    x = 490,037.72

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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.