Home / 485,888.52-670,521.66-268,099.20

Finding the Fourth Proportional to 485,888.52, 670,521.66 and 268,099.20

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Solution

The fourth proportional to 485,888.52, 670,521.66 and 268,099.20 is: 369,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,888.52 : 670,521.66 = 268,099.20 : x
  2. Step 2: Convert to fraction form
    485,888.52/670,521.66 = 268,099.20/x
  3. Step 3: Cross multiply
    485,888.52x = 670,521.66 × 268,099.20
  4. Step 4: Simplify right side
    485,888.52x = 179,766,320,628.67
  5. Step 5: Solve for x
    x = 179,766,320,628.67/485,888.52
  6. Step 6: Final answer
    x = 369,974.41

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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.