Home / 814,401.60-1,219,634.10-778,972.20

Finding the Fourth Proportional to 814,401.60, 1,219,634.10 and 778,972.20

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Solution

The fourth proportional to 814,401.60, 1,219,634.10 and 778,972.20 is: 1,166,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,401.60 : 1,219,634.10 = 778,972.20 : x
  2. Step 2: Convert to fraction form
    814,401.60/1,219,634.10 = 778,972.20/x
  3. Step 3: Cross multiply
    814,401.60x = 1,219,634.10 × 778,972.20
  4. Step 4: Simplify right side
    814,401.60x = 950,061,058,072.02
  5. Step 5: Solve for x
    x = 950,061,058,072.02/814,401.60
  6. Step 6: Final answer
    x = 1,166,575.63

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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.