Home / 787,436.16-1,086,652.44-447,903.60

Finding the Fourth Proportional to 787,436.16, 1,086,652.44 and 447,903.60

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Solution

The fourth proportional to 787,436.16, 1,086,652.44 and 447,903.60 is: 618,101.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,436.16 : 1,086,652.44 = 447,903.60 : x
  2. Step 2: Convert to fraction form
    787,436.16/1,086,652.44 = 447,903.60/x
  3. Step 3: Cross multiply
    787,436.16x = 1,086,652.44 × 447,903.60
  4. Step 4: Simplify right side
    787,436.16x = 486,715,539,824.78
  5. Step 5: Solve for x
    x = 486,715,539,824.78/787,436.16
  6. Step 6: Final answer
    x = 618,101.59

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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.