Home / 809,759.96-1,117,462.12-447,208.28

Finding the Fourth Proportional to 809,759.96, 1,117,462.12 and 447,208.28

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Solution

The fourth proportional to 809,759.96, 1,117,462.12 and 447,208.28 is: 617,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,759.96 : 1,117,462.12 = 447,208.28 : x
  2. Step 2: Convert to fraction form
    809,759.96/1,117,462.12 = 447,208.28/x
  3. Step 3: Cross multiply
    809,759.96x = 1,117,462.12 × 447,208.28
  4. Step 4: Simplify right side
    809,759.96x = 499,738,312,650.35
  5. Step 5: Solve for x
    x = 499,738,312,650.35/809,759.96
  6. Step 6: Final answer
    x = 617,143.77

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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.