Home / 810,280.44-1,215,362.34-354,917.88

Finding the Fourth Proportional to 810,280.44, 1,215,362.34 and 354,917.88

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Solution

The fourth proportional to 810,280.44, 1,215,362.34 and 354,917.88 is: 532,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,280.44 : 1,215,362.34 = 354,917.88 : x
  2. Step 2: Convert to fraction form
    810,280.44/1,215,362.34 = 354,917.88/x
  3. Step 3: Cross multiply
    810,280.44x = 1,215,362.34 × 354,917.88
  4. Step 4: Simplify right side
    810,280.44x = 431,353,825,144.64
  5. Step 5: Solve for x
    x = 431,353,825,144.64/810,280.44
  6. Step 6: Final answer
    x = 532,351.27

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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.