Home / 789,490.26-1,184,359.59-340,338.78

Finding the Fourth Proportional to 789,490.26, 1,184,359.59 and 340,338.78

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Solution

The fourth proportional to 789,490.26, 1,184,359.59 and 340,338.78 is: 510,561.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,490.26 : 1,184,359.59 = 340,338.78 : x
  2. Step 2: Convert to fraction form
    789,490.26/1,184,359.59 = 340,338.78/x
  3. Step 3: Cross multiply
    789,490.26x = 1,184,359.59 × 340,338.78
  4. Step 4: Simplify right side
    789,490.26x = 403,083,497,941.90
  5. Step 5: Solve for x
    x = 403,083,497,941.90/789,490.26
  6. Step 6: Final answer
    x = 510,561.71

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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.