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Finding the Fourth Proportional to 863,510.40, 1,295,362.80 and 264,466.80

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Solution

The fourth proportional to 863,510.40, 1,295,362.80 and 264,466.80 is: 396,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,510.40 : 1,295,362.80 = 264,466.80 : x
  2. Step 2: Convert to fraction form
    863,510.40/1,295,362.80 = 264,466.80/x
  3. Step 3: Cross multiply
    863,510.40x = 1,295,362.80 × 264,466.80
  4. Step 4: Simplify right side
    863,510.40x = 342,580,454,555.04
  5. Step 5: Solve for x
    x = 342,580,454,555.04/863,510.40
  6. Step 6: Final answer
    x = 396,729.97

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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.