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Finding the Fourth Proportional to 863,060.40, 1,294,687.80 and 264,016.80

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Solution

The fourth proportional to 863,060.40, 1,294,687.80 and 264,016.80 is: 396,054.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,060.40 : 1,294,687.80 = 264,016.80 : x
  2. Step 2: Convert to fraction form
    863,060.40/1,294,687.80 = 264,016.80/x
  3. Step 3: Cross multiply
    863,060.40x = 1,294,687.80 × 264,016.80
  4. Step 4: Simplify right side
    863,060.40x = 341,819,329,955.04
  5. Step 5: Solve for x
    x = 341,819,329,955.04/863,060.40
  6. Step 6: Final answer
    x = 396,054.93

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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.