Home / 532,105.45-734,321.09-290,403.53

Finding the Fourth Proportional to 532,105.45, 734,321.09 and 290,403.53

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Solution

The fourth proportional to 532,105.45, 734,321.09 and 290,403.53 is: 400,765.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,105.45 : 734,321.09 = 290,403.53 : x
  2. Step 2: Convert to fraction form
    532,105.45/734,321.09 = 290,403.53/x
  3. Step 3: Cross multiply
    532,105.45x = 734,321.09 × 290,403.53
  4. Step 4: Simplify right side
    532,105.45x = 213,249,436,497.56
  5. Step 5: Solve for x
    x = 213,249,436,497.56/532,105.45
  6. Step 6: Final answer
    x = 400,765.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.