Home / 787,295.12-1,086,990.24-605,686.64

Finding the Fourth Proportional to 787,295.12, 1,086,990.24 and 605,686.64

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Solution

The fourth proportional to 787,295.12, 1,086,990.24 and 605,686.64 is: 836,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,295.12 : 1,086,990.24 = 605,686.64 : x
  2. Step 2: Convert to fraction form
    787,295.12/1,086,990.24 = 605,686.64/x
  3. Step 3: Cross multiply
    787,295.12x = 1,086,990.24 × 605,686.64
  4. Step 4: Simplify right side
    787,295.12x = 658,375,466,178.39
  5. Step 5: Solve for x
    x = 658,375,466,178.39/787,295.12
  6. Step 6: Final answer
    x = 836,249.90

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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.