Home / 818,541.20-1,227,512.44-312,852.12

Finding the Fourth Proportional to 818,541.20, 1,227,512.44 and 312,852.12

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Solution

The fourth proportional to 818,541.20, 1,227,512.44 and 312,852.12 is: 469,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,541.20 : 1,227,512.44 = 312,852.12 : x
  2. Step 2: Convert to fraction form
    818,541.20/1,227,512.44 = 312,852.12/x
  3. Step 3: Cross multiply
    818,541.20x = 1,227,512.44 × 312,852.12
  4. Step 4: Simplify right side
    818,541.20x = 384,029,869,180.37
  5. Step 5: Solve for x
    x = 384,029,869,180.37/818,541.20
  6. Step 6: Final answer
    x = 469,163.76

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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.