Home / 787,186.56-1,086,303.84-447,647.04

Finding the Fourth Proportional to 787,186.56, 1,086,303.84 and 447,647.04

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Solution

The fourth proportional to 787,186.56, 1,086,303.84 and 447,647.04 is: 617,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,186.56 : 1,086,303.84 = 447,647.04 : x
  2. Step 2: Convert to fraction form
    787,186.56/1,086,303.84 = 447,647.04/x
  3. Step 3: Cross multiply
    787,186.56x = 1,086,303.84 × 447,647.04
  4. Step 4: Simplify right side
    787,186.56x = 486,280,698,516.63
  5. Step 5: Solve for x
    x = 486,280,698,516.63/787,186.56
  6. Step 6: Final answer
    x = 617,745.17

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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.