Home / 682,681.52-1,023,685.31-209,252.72

Finding the Fourth Proportional to 682,681.52, 1,023,685.31 and 209,252.72

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Solution

The fourth proportional to 682,681.52, 1,023,685.31 and 209,252.72 is: 313,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,681.52 : 1,023,685.31 = 209,252.72 : x
  2. Step 2: Convert to fraction form
    682,681.52/1,023,685.31 = 209,252.72/x
  3. Step 3: Cross multiply
    682,681.52x = 1,023,685.31 × 209,252.72
  4. Step 4: Simplify right side
    682,681.52x = 214,208,929,376.85
  5. Step 5: Solve for x
    x = 214,208,929,376.85/682,681.52
  6. Step 6: Final answer
    x = 313,775.79

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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.