Home / 810,890.30-1,216,941.33-305,949.26

Finding the Fourth Proportional to 810,890.30, 1,216,941.33 and 305,949.26

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Solution

The fourth proportional to 810,890.30, 1,216,941.33 and 305,949.26 is: 459,152.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,890.30 : 1,216,941.33 = 305,949.26 : x
  2. Step 2: Convert to fraction form
    810,890.30/1,216,941.33 = 305,949.26/x
  3. Step 3: Cross multiply
    810,890.30x = 1,216,941.33 × 305,949.26
  4. Step 4: Simplify right side
    810,890.30x = 372,322,299,376.92
  5. Step 5: Solve for x
    x = 372,322,299,376.92/810,890.30
  6. Step 6: Final answer
    x = 459,152.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.