Home / 605,764.20-908,427.60-306,145.20

Finding the Fourth Proportional to 605,764.20, 908,427.60 and 306,145.20

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Solution

The fourth proportional to 605,764.20, 908,427.60 and 306,145.20 is: 459,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,764.20 : 908,427.60 = 306,145.20 : x
  2. Step 2: Convert to fraction form
    605,764.20/908,427.60 = 306,145.20/x
  3. Step 3: Cross multiply
    605,764.20x = 908,427.60 × 306,145.20
  4. Step 4: Simplify right side
    605,764.20x = 278,110,749,287.52
  5. Step 5: Solve for x
    x = 278,110,749,287.52/605,764.20
  6. Step 6: Final answer
    x = 459,107.27

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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.