Home / 787,265.09-1,086,529.98-443,167.64

Finding the Fourth Proportional to 787,265.09, 1,086,529.98 and 443,167.64

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Solution

The fourth proportional to 787,265.09, 1,086,529.98 and 443,167.64 is: 611,629.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,265.09 : 1,086,529.98 = 443,167.64 : x
  2. Step 2: Convert to fraction form
    787,265.09/1,086,529.98 = 443,167.64/x
  3. Step 3: Cross multiply
    787,265.09x = 1,086,529.98 × 443,167.64
  4. Step 4: Simplify right side
    787,265.09x = 481,514,921,593.20
  5. Step 5: Solve for x
    x = 481,514,921,593.20/787,265.09
  6. Step 6: Final answer
    x = 611,629.97

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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.