Home / 485,785.96-670,368.10-268,003.32

Finding the Fourth Proportional to 485,785.96, 670,368.10 and 268,003.32

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Solution

The fourth proportional to 485,785.96, 670,368.10 and 268,003.32 is: 369,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,785.96 : 670,368.10 = 268,003.32 : x
  2. Step 2: Convert to fraction form
    485,785.96/670,368.10 = 268,003.32/x
  3. Step 3: Cross multiply
    485,785.96x = 670,368.10 × 268,003.32
  4. Step 4: Simplify right side
    485,785.96x = 179,660,876,422.09
  5. Step 5: Solve for x
    x = 179,660,876,422.09/485,785.96
  6. Step 6: Final answer
    x = 369,835.47

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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.