Home / 1,129,867.26-1,558,837.31-639,770.02

Finding the Fourth Proportional to 1,129,867.26, 1,558,837.31 and 639,770.02

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Solution

The fourth proportional to 1,129,867.26, 1,558,837.31 and 639,770.02 is: 882,667.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,867.26 : 1,558,837.31 = 639,770.02 : x
  2. Step 2: Convert to fraction form
    1,129,867.26/1,558,837.31 = 639,770.02/x
  3. Step 3: Cross multiply
    1,129,867.26x = 1,558,837.31 × 639,770.02
  4. Step 4: Simplify right side
    1,129,867.26x = 997,297,376,995.45
  5. Step 5: Solve for x
    x = 997,297,376,995.45/1,129,867.26
  6. Step 6: Final answer
    x = 882,667.74

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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.