Home / 789,040.20-1,182,782.70-389,742.60

Finding the Fourth Proportional to 789,040.20, 1,182,782.70 and 389,742.60

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Solution

The fourth proportional to 789,040.20, 1,182,782.70 and 389,742.60 is: 584,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,040.20 : 1,182,782.70 = 389,742.60 : x
  2. Step 2: Convert to fraction form
    789,040.20/1,182,782.70 = 389,742.60/x
  3. Step 3: Cross multiply
    789,040.20x = 1,182,782.70 × 389,742.60
  4. Step 4: Simplify right side
    789,040.20x = 460,980,804,733.02
  5. Step 5: Solve for x
    x = 460,980,804,733.02/789,040.20
  6. Step 6: Final answer
    x = 584,229.81

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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.