Home / 454,911.29-627,664.71-299,845.39

Finding the Fourth Proportional to 454,911.29, 627,664.71 and 299,845.39

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Solution

The fourth proportional to 454,911.29, 627,664.71 and 299,845.39 is: 413,712.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,911.29 : 627,664.71 = 299,845.39 : x
  2. Step 2: Convert to fraction form
    454,911.29/627,664.71 = 299,845.39/x
  3. Step 3: Cross multiply
    454,911.29x = 627,664.71 × 299,845.39
  4. Step 4: Simplify right side
    454,911.29x = 188,202,369,759.19
  5. Step 5: Solve for x
    x = 188,202,369,759.19/454,911.29
  6. Step 6: Final answer
    x = 413,712.25

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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.