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Finding the Fourth Proportional to 489,671.96, 734,511.18 and 134,723.48

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Solution

The fourth proportional to 489,671.96, 734,511.18 and 134,723.48 is: 202,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,671.96 : 734,511.18 = 134,723.48 : x
  2. Step 2: Convert to fraction form
    489,671.96/734,511.18 = 134,723.48/x
  3. Step 3: Cross multiply
    489,671.96x = 734,511.18 × 134,723.48
  4. Step 4: Simplify right side
    489,671.96x = 98,955,902,268.51
  5. Step 5: Solve for x
    x = 98,955,902,268.51/489,671.96
  6. Step 6: Final answer
    x = 202,086.11

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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.