Home / 842,995.80-1,263,902.40-310,447.80

Finding the Fourth Proportional to 842,995.80, 1,263,902.40 and 310,447.80

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Solution

The fourth proportional to 842,995.80, 1,263,902.40 and 310,447.80 is: 465,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,995.80 : 1,263,902.40 = 310,447.80 : x
  2. Step 2: Convert to fraction form
    842,995.80/1,263,902.40 = 310,447.80/x
  3. Step 3: Cross multiply
    842,995.80x = 1,263,902.40 × 310,447.80
  4. Step 4: Simplify right side
    842,995.80x = 392,375,719,494.72
  5. Step 5: Solve for x
    x = 392,375,719,494.72/842,995.80
  6. Step 6: Final answer
    x = 465,453.94

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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.