Home / 647,736.72-893,878.26-361,275.36

Finding the Fourth Proportional to 647,736.72, 893,878.26 and 361,275.36

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Solution

The fourth proportional to 647,736.72, 893,878.26 and 361,275.36 is: 498,560.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,736.72 : 893,878.26 = 361,275.36 : x
  2. Step 2: Convert to fraction form
    647,736.72/893,878.26 = 361,275.36/x
  3. Step 3: Cross multiply
    647,736.72x = 893,878.26 × 361,275.36
  4. Step 4: Simplify right side
    647,736.72x = 322,936,190,177.67
  5. Step 5: Solve for x
    x = 322,936,190,177.67/647,736.72
  6. Step 6: Final answer
    x = 498,560.88

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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.