Home / 843,303.85-1,265,371.30-394,055.78

Finding the Fourth Proportional to 843,303.85, 1,265,371.30 and 394,055.78

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Solution

The fourth proportional to 843,303.85, 1,265,371.30 and 394,055.78 is: 591,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,303.85 : 1,265,371.30 = 394,055.78 : x
  2. Step 2: Convert to fraction form
    843,303.85/1,265,371.30 = 394,055.78/x
  3. Step 3: Cross multiply
    843,303.85x = 1,265,371.30 × 394,055.78
  4. Step 4: Simplify right side
    843,303.85x = 498,626,868,776.83
  5. Step 5: Solve for x
    x = 498,626,868,776.83/843,303.85
  6. Step 6: Final answer
    x = 591,277.83

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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.