Home / 810,877.80-1,216,922.58-305,936.76

Finding the Fourth Proportional to 810,877.80, 1,216,922.58 and 305,936.76

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Solution

The fourth proportional to 810,877.80, 1,216,922.58 and 305,936.76 is: 459,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,877.80 : 1,216,922.58 = 305,936.76 : x
  2. Step 2: Convert to fraction form
    810,877.80/1,216,922.58 = 305,936.76/x
  3. Step 3: Cross multiply
    810,877.80x = 1,216,922.58 × 305,936.76
  4. Step 4: Simplify right side
    810,877.80x = 372,301,351,296.04
  5. Step 5: Solve for x
    x = 372,301,351,296.04/810,877.80
  6. Step 6: Final answer
    x = 459,133.73

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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.