Home / 938,405.68-1,407,311.25-339,287.56

Finding the Fourth Proportional to 938,405.68, 1,407,311.25 and 339,287.56

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Solution

The fourth proportional to 938,405.68, 1,407,311.25 and 339,287.56 is: 508,823.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,405.68 : 1,407,311.25 = 339,287.56 : x
  2. Step 2: Convert to fraction form
    938,405.68/1,407,311.25 = 339,287.56/x
  3. Step 3: Cross multiply
    938,405.68x = 1,407,311.25 × 339,287.56
  4. Step 4: Simplify right side
    938,405.68x = 477,483,200,173.05
  5. Step 5: Solve for x
    x = 477,483,200,173.05/938,405.68
  6. Step 6: Final answer
    x = 508,823.86

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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.