Home / 843,630.30-1,265,556.45-311,525.10

Finding the Fourth Proportional to 843,630.30, 1,265,556.45 and 311,525.10

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Solution

The fourth proportional to 843,630.30, 1,265,556.45 and 311,525.10 is: 467,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,630.30 : 1,265,556.45 = 311,525.10 : x
  2. Step 2: Convert to fraction form
    843,630.30/1,265,556.45 = 311,525.10/x
  3. Step 3: Cross multiply
    843,630.30x = 1,265,556.45 × 311,525.10
  4. Step 4: Simplify right side
    843,630.30x = 394,252,599,641.90
  5. Step 5: Solve for x
    x = 394,252,599,641.90/843,630.30
  6. Step 6: Final answer
    x = 467,328.64

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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.