Home / 810,285.41-1,118,163.78-447,701.46

Finding the Fourth Proportional to 810,285.41, 1,118,163.78 and 447,701.46

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Solution

The fourth proportional to 810,285.41, 1,118,163.78 and 447,701.46 is: 617,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,285.41 : 1,118,163.78 = 447,701.46 : x
  2. Step 2: Convert to fraction form
    810,285.41/1,118,163.78 = 447,701.46/x
  3. Step 3: Cross multiply
    810,285.41x = 1,118,163.78 × 447,701.46
  4. Step 4: Simplify right side
    810,285.41x = 500,603,556,825.12
  5. Step 5: Solve for x
    x = 500,603,556,825.12/810,285.41
  6. Step 6: Final answer
    x = 617,811.40

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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.