Home / 489,762.39-734,927.19-205,427.61

Finding the Fourth Proportional to 489,762.39, 734,927.19 and 205,427.61

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Solution

The fourth proportional to 489,762.39, 734,927.19 and 205,427.61 is: 308,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,762.39 : 734,927.19 = 205,427.61 : x
  2. Step 2: Convert to fraction form
    489,762.39/734,927.19 = 205,427.61/x
  3. Step 3: Cross multiply
    489,762.39x = 734,927.19 × 205,427.61
  4. Step 4: Simplify right side
    489,762.39x = 150,974,336,165.72
  5. Step 5: Solve for x
    x = 150,974,336,165.72/489,762.39
  6. Step 6: Final answer
    x = 308,260.37

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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.