Home / 1,385,837.58-2,078,761.19-426,286.68

Finding the Fourth Proportional to 1,385,837.58, 2,078,761.19 and 426,286.68

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Solution

The fourth proportional to 1,385,837.58, 2,078,761.19 and 426,286.68 is: 639,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,837.58 : 2,078,761.19 = 426,286.68 : x
  2. Step 2: Convert to fraction form
    1,385,837.58/2,078,761.19 = 426,286.68/x
  3. Step 3: Cross multiply
    1,385,837.58x = 2,078,761.19 × 426,286.68
  4. Step 4: Simplify right side
    1,385,837.58x = 886,148,204,066.52
  5. Step 5: Solve for x
    x = 886,148,204,066.52/1,385,837.58
  6. Step 6: Final answer
    x = 639,431.50

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Double scale
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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.