Home / 489,837.42-734,194.17-205,475.40

Finding the Fourth Proportional to 489,837.42, 734,194.17 and 205,475.40

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Solution

The fourth proportional to 489,837.42, 734,194.17 and 205,475.40 is: 307,977.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,837.42 : 734,194.17 = 205,475.40 : x
  2. Step 2: Convert to fraction form
    489,837.42/734,194.17 = 205,475.40/x
  3. Step 3: Cross multiply
    489,837.42x = 734,194.17 × 205,475.40
  4. Step 4: Simplify right side
    489,837.42x = 150,858,840,758.42
  5. Step 5: Solve for x
    x = 150,858,840,758.42/489,837.42
  6. Step 6: Final answer
    x = 307,977.37

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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.