Home / 787,169.34-1,086,288.15-447,637.50

Finding the Fourth Proportional to 787,169.34, 1,086,288.15 and 447,637.50

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Solution

The fourth proportional to 787,169.34, 1,086,288.15 and 447,637.50 is: 617,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,169.34 : 1,086,288.15 = 447,637.50 : x
  2. Step 2: Convert to fraction form
    787,169.34/1,086,288.15 = 447,637.50/x
  3. Step 3: Cross multiply
    787,169.34x = 1,086,288.15 × 447,637.50
  4. Step 4: Simplify right side
    787,169.34x = 486,263,311,745.63
  5. Step 5: Solve for x
    x = 486,263,311,745.63/787,169.34
  6. Step 6: Final answer
    x = 617,736.60

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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.