Home / 842,820.48-1,263,967.20-281,723.76

Finding the Fourth Proportional to 842,820.48, 1,263,967.20 and 281,723.76

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Solution

The fourth proportional to 842,820.48, 1,263,967.20 and 281,723.76 is: 422,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,820.48 : 1,263,967.20 = 281,723.76 : x
  2. Step 2: Convert to fraction form
    842,820.48/1,263,967.20 = 281,723.76/x
  3. Step 3: Cross multiply
    842,820.48x = 1,263,967.20 × 281,723.76
  4. Step 4: Simplify right side
    842,820.48x = 356,089,592,100.67
  5. Step 5: Solve for x
    x = 356,089,592,100.67/842,820.48
  6. Step 6: Final answer
    x = 422,497.55

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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.