Home / 863,204.40-1,294,288.20-443,300.40

Finding the Fourth Proportional to 863,204.40, 1,294,288.20 and 443,300.40

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Solution

The fourth proportional to 863,204.40, 1,294,288.20 and 443,300.40 is: 664,684.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,204.40 : 1,294,288.20 = 443,300.40 : x
  2. Step 2: Convert to fraction form
    863,204.40/1,294,288.20 = 443,300.40/x
  3. Step 3: Cross multiply
    863,204.40x = 1,294,288.20 × 443,300.40
  4. Step 4: Simplify right side
    863,204.40x = 573,758,476,775.28
  5. Step 5: Solve for x
    x = 573,758,476,775.28/863,204.40
  6. Step 6: Final answer
    x = 664,684.37

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1.5x scale

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.