Home / 810,625.76-1,118,667.92-443,103.36

Finding the Fourth Proportional to 810,625.76, 1,118,667.92 and 443,103.36

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Solution

The fourth proportional to 810,625.76, 1,118,667.92 and 443,103.36 is: 611,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,625.76 : 1,118,667.92 = 443,103.36 : x
  2. Step 2: Convert to fraction form
    810,625.76/1,118,667.92 = 443,103.36/x
  3. Step 3: Cross multiply
    810,625.76x = 1,118,667.92 × 443,103.36
  4. Step 4: Simplify right side
    810,625.76x = 495,685,514,076.21
  5. Step 5: Solve for x
    x = 495,685,514,076.21/810,625.76
  6. Step 6: Final answer
    x = 611,485.03

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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.