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Finding the Fourth Proportional to 489,674.56, 734,377.44 and 134,605.12

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Solution

The fourth proportional to 489,674.56, 734,377.44 and 134,605.12 is: 201,870.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,674.56 : 734,377.44 = 134,605.12 : x
  2. Step 2: Convert to fraction form
    489,674.56/734,377.44 = 134,605.12/x
  3. Step 3: Cross multiply
    489,674.56x = 734,377.44 × 134,605.12
  4. Step 4: Simplify right side
    489,674.56x = 98,850,963,436.49
  5. Step 5: Solve for x
    x = 98,850,963,436.49/489,674.56
  6. Step 6: Final answer
    x = 201,870.74

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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.