Home / 789,761.16-1,089,870.48-445,669.92

Finding the Fourth Proportional to 789,761.16, 1,089,870.48 and 445,669.92

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Solution

The fourth proportional to 789,761.16, 1,089,870.48 and 445,669.92 is: 615,024.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,761.16 : 1,089,870.48 = 445,669.92 : x
  2. Step 2: Convert to fraction form
    789,761.16/1,089,870.48 = 445,669.92/x
  3. Step 3: Cross multiply
    789,761.16x = 1,089,870.48 × 445,669.92
  4. Step 4: Simplify right side
    789,761.16x = 485,722,489,631.96
  5. Step 5: Solve for x
    x = 485,722,489,631.96/789,761.16
  6. Step 6: Final answer
    x = 615,024.53

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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.