Home / 789,741.80-1,184,612.70-621,780.20

Finding the Fourth Proportional to 789,741.80, 1,184,612.70 and 621,780.20

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Solution

The fourth proportional to 789,741.80, 1,184,612.70 and 621,780.20 is: 932,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,741.80 : 1,184,612.70 = 621,780.20 : x
  2. Step 2: Convert to fraction form
    789,741.80/1,184,612.70 = 621,780.20/x
  3. Step 3: Cross multiply
    789,741.80x = 1,184,612.70 × 621,780.20
  4. Step 4: Simplify right side
    789,741.80x = 736,568,721,528.54
  5. Step 5: Solve for x
    x = 736,568,721,528.54/789,741.80
  6. Step 6: Final answer
    x = 932,670.30

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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.