Home / 1,280,436.92-1,767,371.12-845,171.96

Finding the Fourth Proportional to 1,280,436.92, 1,767,371.12 and 845,171.96

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Solution

The fourth proportional to 1,280,436.92, 1,767,371.12 and 845,171.96 is: 1,166,580.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,436.92 : 1,767,371.12 = 845,171.96 : x
  2. Step 2: Convert to fraction form
    1,280,436.92/1,767,371.12 = 845,171.96/x
  3. Step 3: Cross multiply
    1,280,436.92x = 1,767,371.12 × 845,171.96
  4. Step 4: Simplify right side
    1,280,436.92x = 1,493,732,513,537.80
  5. Step 5: Solve for x
    x = 1,493,732,513,537.80/1,280,436.92
  6. Step 6: Final answer
    x = 1,166,580.32

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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.