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Finding the Fourth Proportional to 607,257.56, 909,889.34 and 207,680.33

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Solution

The fourth proportional to 607,257.56, 909,889.34 and 207,680.33 is: 311,179.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,257.56 : 909,889.34 = 207,680.33 : x
  2. Step 2: Convert to fraction form
    607,257.56/909,889.34 = 207,680.33/x
  3. Step 3: Cross multiply
    607,257.56x = 909,889.34 × 207,680.33
  4. Step 4: Simplify right side
    607,257.56x = 188,966,112,806.83
  5. Step 5: Solve for x
    x = 188,966,112,806.83/607,257.56
  6. Step 6: Final answer
    x = 311,179.52

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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.