Home / 787,436.68-1,086,519.54-465,199.24

Finding the Fourth Proportional to 787,436.68, 1,086,519.54 and 465,199.24

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Solution

The fourth proportional to 787,436.68, 1,086,519.54 and 465,199.24 is: 641,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,436.68 : 1,086,519.54 = 465,199.24 : x
  2. Step 2: Convert to fraction form
    787,436.68/1,086,519.54 = 465,199.24/x
  3. Step 3: Cross multiply
    787,436.68x = 1,086,519.54 × 465,199.24
  4. Step 4: Simplify right side
    787,436.68x = 505,448,064,253.15
  5. Step 5: Solve for x
    x = 505,448,064,253.15/787,436.68
  6. Step 6: Final answer
    x = 641,890.42

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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.