Home / 684,719.70-1,027,079.55-285,227.70

Finding the Fourth Proportional to 684,719.70, 1,027,079.55 and 285,227.70

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Solution

The fourth proportional to 684,719.70, 1,027,079.55 and 285,227.70 is: 427,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,719.70 : 1,027,079.55 = 285,227.70 : x
  2. Step 2: Convert to fraction form
    684,719.70/1,027,079.55 = 285,227.70/x
  3. Step 3: Cross multiply
    684,719.70x = 1,027,079.55 × 285,227.70
  4. Step 4: Simplify right side
    684,719.70x = 292,951,537,763.54
  5. Step 5: Solve for x
    x = 292,951,537,763.54/684,719.70
  6. Step 6: Final answer
    x = 427,841.55

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Similar ratio
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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.