Home / 485,840.30-670,456.37-268,060.19

Finding the Fourth Proportional to 485,840.30, 670,456.37 and 268,060.19

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Solution

The fourth proportional to 485,840.30, 670,456.37 and 268,060.19 is: 369,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,840.30 : 670,456.37 = 268,060.19 : x
  2. Step 2: Convert to fraction form
    485,840.30/670,456.37 = 268,060.19/x
  3. Step 3: Cross multiply
    485,840.30x = 670,456.37 × 268,060.19
  4. Step 4: Simplify right side
    485,840.30x = 179,722,659,246.78
  5. Step 5: Solve for x
    x = 179,722,659,246.78/485,840.30
  6. Step 6: Final answer
    x = 369,921.27

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1.5x scale

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.