Home / 863,300.80-1,294,951.20-664,004.80

Finding the Fourth Proportional to 863,300.80, 1,294,951.20 and 664,004.80

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Solution

The fourth proportional to 863,300.80, 1,294,951.20 and 664,004.80 is: 996,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,300.80 : 1,294,951.20 = 664,004.80 : x
  2. Step 2: Convert to fraction form
    863,300.80/1,294,951.20 = 664,004.80/x
  3. Step 3: Cross multiply
    863,300.80x = 1,294,951.20 × 664,004.80
  4. Step 4: Simplify right side
    863,300.80x = 859,853,812,565.76
  5. Step 5: Solve for x
    x = 859,853,812,565.76/863,300.80
  6. Step 6: Final answer
    x = 996,007.20

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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.