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Finding the Fourth Proportional to 489,385.58, 734,076.99 and 134,399.93

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Solution

The fourth proportional to 489,385.58, 734,076.99 and 134,399.93 is: 201,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,385.58 : 734,076.99 = 134,399.93 : x
  2. Step 2: Convert to fraction form
    489,385.58/734,076.99 = 134,399.93/x
  3. Step 3: Cross multiply
    489,385.58x = 734,076.99 × 134,399.93
  4. Step 4: Simplify right side
    489,385.58x = 98,659,892,400.23
  5. Step 5: Solve for x
    x = 98,659,892,400.23/489,385.58
  6. Step 6: Final answer
    x = 201,599.51

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Similar ratio
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1.5x scale

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.