Home / 485,890.02-670,523.73-268,100.70

Finding the Fourth Proportional to 485,890.02, 670,523.73 and 268,100.70

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Solution

The fourth proportional to 485,890.02, 670,523.73 and 268,100.70 is: 369,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,890.02 : 670,523.73 = 268,100.70 : x
  2. Step 2: Convert to fraction form
    485,890.02/670,523.73 = 268,100.70/x
  3. Step 3: Cross multiply
    485,890.02x = 670,523.73 × 268,100.70
  4. Step 4: Simplify right side
    485,890.02x = 179,767,881,379.61
  5. Step 5: Solve for x
    x = 179,767,881,379.61/485,890.02
  6. Step 6: Final answer
    x = 369,976.48

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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.