Home / 789,639.60-1,184,542.38-257,202.12

Finding the Fourth Proportional to 789,639.60, 1,184,542.38 and 257,202.12

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Solution

The fourth proportional to 789,639.60, 1,184,542.38 and 257,202.12 is: 385,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,639.60 : 1,184,542.38 = 257,202.12 : x
  2. Step 2: Convert to fraction form
    789,639.60/1,184,542.38 = 257,202.12/x
  3. Step 3: Cross multiply
    789,639.60x = 1,184,542.38 × 257,202.12
  4. Step 4: Simplify right side
    789,639.60x = 304,666,811,365.85
  5. Step 5: Solve for x
    x = 304,666,811,365.85/789,639.60
  6. Step 6: Final answer
    x = 385,830.21

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1.5x scale

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.