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Finding the Fourth Proportional to 486,886.06, 729,240.06 and 281,469.01

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Solution

The fourth proportional to 486,886.06, 729,240.06 and 281,469.01 is: 421,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,886.06 : 729,240.06 = 281,469.01 : x
  2. Step 2: Convert to fraction form
    486,886.06/729,240.06 = 281,469.01/x
  3. Step 3: Cross multiply
    486,886.06x = 729,240.06 × 281,469.01
  4. Step 4: Simplify right side
    486,886.06x = 205,258,477,740.54
  5. Step 5: Solve for x
    x = 205,258,477,740.54/486,886.06
  6. Step 6: Final answer
    x = 421,573.95

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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.