Home / 818,542.20-1,227,813.30-257,576.70

Finding the Fourth Proportional to 818,542.20, 1,227,813.30 and 257,576.70

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Solution

The fourth proportional to 818,542.20, 1,227,813.30 and 257,576.70 is: 386,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,542.20 : 1,227,813.30 = 257,576.70 : x
  2. Step 2: Convert to fraction form
    818,542.20/1,227,813.30 = 257,576.70/x
  3. Step 3: Cross multiply
    818,542.20x = 1,227,813.30 × 257,576.70
  4. Step 4: Simplify right side
    818,542.20x = 316,256,098,030.11
  5. Step 5: Solve for x
    x = 316,256,098,030.11/818,542.20
  6. Step 6: Final answer
    x = 386,365.05

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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.