Home / 487,729.53-673,092.87-272,856.78

Finding the Fourth Proportional to 487,729.53, 673,092.87 and 272,856.78

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Solution

The fourth proportional to 487,729.53, 673,092.87 and 272,856.78 is: 376,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,729.53 : 673,092.87 = 272,856.78 : x
  2. Step 2: Convert to fraction form
    487,729.53/673,092.87 = 272,856.78/x
  3. Step 3: Cross multiply
    487,729.53x = 673,092.87 × 272,856.78
  4. Step 4: Simplify right side
    487,729.53x = 183,657,953,149.16
  5. Step 5: Solve for x
    x = 183,657,953,149.16/487,729.53
  6. Step 6: Final answer
    x = 376,556.97

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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.