Home / 1,661,122.30-2,491,683.45-821,314.30

Finding the Fourth Proportional to 1,661,122.30, 2,491,683.45 and 821,314.30

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Solution

The fourth proportional to 1,661,122.30, 2,491,683.45 and 821,314.30 is: 1,231,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,122.30 : 2,491,683.45 = 821,314.30 : x
  2. Step 2: Convert to fraction form
    1,661,122.30/2,491,683.45 = 821,314.30/x
  3. Step 3: Cross multiply
    1,661,122.30x = 2,491,683.45 × 821,314.30
  4. Step 4: Simplify right side
    1,661,122.30x = 2,046,455,248,558.34
  5. Step 5: Solve for x
    x = 2,046,455,248,558.34/1,661,122.30
  6. Step 6: Final answer
    x = 1,231,971.45

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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.