Home / 789,314.60-1,183,422.72-339,900.68

Finding the Fourth Proportional to 789,314.60, 1,183,422.72 and 339,900.68

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Solution

The fourth proportional to 789,314.60, 1,183,422.72 and 339,900.68 is: 509,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,314.60 : 1,183,422.72 = 339,900.68 : x
  2. Step 2: Convert to fraction form
    789,314.60/1,183,422.72 = 339,900.68/x
  3. Step 3: Cross multiply
    789,314.60x = 1,183,422.72 × 339,900.68
  4. Step 4: Simplify right side
    789,314.60x = 402,246,187,255.45
  5. Step 5: Solve for x
    x = 402,246,187,255.45/789,314.60
  6. Step 6: Final answer
    x = 509,614.53

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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.