Home / 684,785.80-1,027,178.70-329,714.20

Finding the Fourth Proportional to 684,785.80, 1,027,178.70 and 329,714.20

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Solution

The fourth proportional to 684,785.80, 1,027,178.70 and 329,714.20 is: 494,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,785.80 : 1,027,178.70 = 329,714.20 : x
  2. Step 2: Convert to fraction form
    684,785.80/1,027,178.70 = 329,714.20/x
  3. Step 3: Cross multiply
    684,785.80x = 1,027,178.70 × 329,714.20
  4. Step 4: Simplify right side
    684,785.80x = 338,675,403,327.54
  5. Step 5: Solve for x
    x = 338,675,403,327.54/684,785.80
  6. Step 6: Final answer
    x = 494,571.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.