Home / 1,247,371.48-1,721,371.18-674,410.30

Finding the Fourth Proportional to 1,247,371.48, 1,721,371.18 and 674,410.30

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Solution

The fourth proportional to 1,247,371.48, 1,721,371.18 and 674,410.30 is: 930,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,371.48 : 1,721,371.18 = 674,410.30 : x
  2. Step 2: Convert to fraction form
    1,247,371.48/1,721,371.18 = 674,410.30/x
  3. Step 3: Cross multiply
    1,247,371.48x = 1,721,371.18 × 674,410.30
  4. Step 4: Simplify right side
    1,247,371.48x = 1,160,910,453,915.15
  5. Step 5: Solve for x
    x = 1,160,910,453,915.15/1,247,371.48
  6. Step 6: Final answer
    x = 930,685.42

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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.