Home / 499,295.11-689,026.31-272,940.61

Finding the Fourth Proportional to 499,295.11, 689,026.31 and 272,940.61

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Solution

The fourth proportional to 499,295.11, 689,026.31 and 272,940.61 is: 376,657.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,295.11 : 689,026.31 = 272,940.61 : x
  2. Step 2: Convert to fraction form
    499,295.11/689,026.31 = 272,940.61/x
  3. Step 3: Cross multiply
    499,295.11x = 689,026.31 × 272,940.61
  4. Step 4: Simplify right side
    499,295.11x = 188,063,259,293.71
  5. Step 5: Solve for x
    x = 188,063,259,293.71/499,295.11
  6. Step 6: Final answer
    x = 376,657.52

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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.