Home / 707,002.20-1,059,874.68-257,638.56

Finding the Fourth Proportional to 707,002.20, 1,059,874.68 and 257,638.56

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Solution

The fourth proportional to 707,002.20, 1,059,874.68 and 257,638.56 is: 386,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,002.20 : 1,059,874.68 = 257,638.56 : x
  2. Step 2: Convert to fraction form
    707,002.20/1,059,874.68 = 257,638.56/x
  3. Step 3: Cross multiply
    707,002.20x = 1,059,874.68 × 257,638.56
  4. Step 4: Simplify right side
    707,002.20x = 273,064,586,335.66
  5. Step 5: Solve for x
    x = 273,064,586,335.66/707,002.20
  6. Step 6: Final answer
    x = 386,228.76

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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.