Home / 980,324.12-1,352,688.20-612,757.76

Finding the Fourth Proportional to 980,324.12, 1,352,688.20 and 612,757.76

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Solution

The fourth proportional to 980,324.12, 1,352,688.20 and 612,757.76 is: 845,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,324.12 : 1,352,688.20 = 612,757.76 : x
  2. Step 2: Convert to fraction form
    980,324.12/1,352,688.20 = 612,757.76/x
  3. Step 3: Cross multiply
    980,324.12x = 1,352,688.20 × 612,757.76
  4. Step 4: Simplify right side
    980,324.12x = 828,870,194,936.68
  5. Step 5: Solve for x
    x = 828,870,194,936.68/980,324.12
  6. Step 6: Final answer
    x = 845,506.28

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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.