Home / 810,743.22-1,118,790.76-443,213.36

Finding the Fourth Proportional to 810,743.22, 1,118,790.76 and 443,213.36

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Solution

The fourth proportional to 810,743.22, 1,118,790.76 and 443,213.36 is: 611,615.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,743.22 : 1,118,790.76 = 443,213.36 : x
  2. Step 2: Convert to fraction form
    810,743.22/1,118,790.76 = 443,213.36/x
  3. Step 3: Cross multiply
    810,743.22x = 1,118,790.76 × 443,213.36
  4. Step 4: Simplify right side
    810,743.22x = 495,863,011,876.55
  5. Step 5: Solve for x
    x = 495,863,011,876.55/810,743.22
  6. Step 6: Final answer
    x = 611,615.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.