Home / 842,017.64-1,263,524.62-309,912.36

Finding the Fourth Proportional to 842,017.64, 1,263,524.62 and 309,912.36

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Solution

The fourth proportional to 842,017.64, 1,263,524.62 and 309,912.36 is: 465,051.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,017.64 : 1,263,524.62 = 309,912.36 : x
  2. Step 2: Convert to fraction form
    842,017.64/1,263,524.62 = 309,912.36/x
  3. Step 3: Cross multiply
    842,017.64x = 1,263,524.62 × 309,912.36
  4. Step 4: Simplify right side
    842,017.64x = 391,581,896,902.30
  5. Step 5: Solve for x
    x = 391,581,896,902.30/842,017.64
  6. Step 6: Final answer
    x = 465,051.89

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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.