Home / 1,555,912.32-2,147,129.28-876,835.20

Finding the Fourth Proportional to 1,555,912.32, 2,147,129.28 and 876,835.20

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Solution

The fourth proportional to 1,555,912.32, 2,147,129.28 and 876,835.20 is: 1,210,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,912.32 : 2,147,129.28 = 876,835.20 : x
  2. Step 2: Convert to fraction form
    1,555,912.32/2,147,129.28 = 876,835.20/x
  3. Step 3: Cross multiply
    1,555,912.32x = 2,147,129.28 × 876,835.20
  4. Step 4: Simplify right side
    1,555,912.32x = 1,882,678,531,654.66
  5. Step 5: Solve for x
    x = 1,882,678,531,654.66/1,555,912.32
  6. Step 6: Final answer
    x = 1,210,015.83

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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.