Home / 807,780.68-1,114,691.85-445,203.44

Finding the Fourth Proportional to 807,780.68, 1,114,691.85 and 445,203.44

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Solution

The fourth proportional to 807,780.68, 1,114,691.85 and 445,203.44 is: 614,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,780.68 : 1,114,691.85 = 445,203.44 : x
  2. Step 2: Convert to fraction form
    807,780.68/1,114,691.85 = 445,203.44/x
  3. Step 3: Cross multiply
    807,780.68x = 1,114,691.85 × 445,203.44
  4. Step 4: Simplify right side
    807,780.68x = 496,264,640,586.51
  5. Step 5: Solve for x
    x = 496,264,640,586.51/807,780.68
  6. Step 6: Final answer
    x = 614,355.67

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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.