Home / 671,530.78-1,007,335.66-191,721.70

Finding the Fourth Proportional to 671,530.78, 1,007,335.66 and 191,721.70

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Solution

The fourth proportional to 671,530.78, 1,007,335.66 and 191,721.70 is: 287,593.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,530.78 : 1,007,335.66 = 191,721.70 : x
  2. Step 2: Convert to fraction form
    671,530.78/1,007,335.66 = 191,721.70/x
  3. Step 3: Cross multiply
    671,530.78x = 1,007,335.66 × 191,721.70
  4. Step 4: Simplify right side
    671,530.78x = 193,128,105,205.82
  5. Step 5: Solve for x
    x = 193,128,105,205.82/671,530.78
  6. Step 6: Final answer
    x = 287,593.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.