Home / 1,398,977.40-2,093,627.70-838,414.20

Finding the Fourth Proportional to 1,398,977.40, 2,093,627.70 and 838,414.20

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Solution

The fourth proportional to 1,398,977.40, 2,093,627.70 and 838,414.20 is: 1,254,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,977.40 : 2,093,627.70 = 838,414.20 : x
  2. Step 2: Convert to fraction form
    1,398,977.40/2,093,627.70 = 838,414.20/x
  3. Step 3: Cross multiply
    1,398,977.40x = 2,093,627.70 × 838,414.20
  4. Step 4: Simplify right side
    1,398,977.40x = 1,755,327,193,193.34
  5. Step 5: Solve for x
    x = 1,755,327,193,193.34/1,398,977.40
  6. Step 6: Final answer
    x = 1,254,721.62

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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.