Home / 1,425,236.82-1,966,827.27-780,667.74

Finding the Fourth Proportional to 1,425,236.82, 1,966,827.27 and 780,667.74

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Solution

The fourth proportional to 1,425,236.82, 1,966,827.27 and 780,667.74 is: 1,077,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,236.82 : 1,966,827.27 = 780,667.74 : x
  2. Step 2: Convert to fraction form
    1,425,236.82/1,966,827.27 = 780,667.74/x
  3. Step 3: Cross multiply
    1,425,236.82x = 1,966,827.27 × 780,667.74
  4. Step 4: Simplify right side
    1,425,236.82x = 1,535,438,599,841.27
  5. Step 5: Solve for x
    x = 1,535,438,599,841.27/1,425,236.82
  6. Step 6: Final answer
    x = 1,077,321.73

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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.