Home / 787,563.07-1,086,753.85-443,392.77

Finding the Fourth Proportional to 787,563.07, 1,086,753.85 and 443,392.77

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Solution

The fourth proportional to 787,563.07, 1,086,753.85 and 443,392.77 is: 611,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,563.07 : 1,086,753.85 = 443,392.77 : x
  2. Step 2: Convert to fraction form
    787,563.07/1,086,753.85 = 443,392.77/x
  3. Step 3: Cross multiply
    787,563.07x = 1,086,753.85 × 443,392.77
  4. Step 4: Simplify right side
    787,563.07x = 481,858,799,859.67
  5. Step 5: Solve for x
    x = 481,858,799,859.67/787,563.07
  6. Step 6: Final answer
    x = 611,835.19

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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.