Home / 731,383.20-1,094,936.40-521,431.20

Finding the Fourth Proportional to 731,383.20, 1,094,936.40 and 521,431.20

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Solution

The fourth proportional to 731,383.20, 1,094,936.40 and 521,431.20 is: 780,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,383.20 : 1,094,936.40 = 521,431.20 : x
  2. Step 2: Convert to fraction form
    731,383.20/1,094,936.40 = 521,431.20/x
  3. Step 3: Cross multiply
    731,383.20x = 1,094,936.40 × 521,431.20
  4. Step 4: Simplify right side
    731,383.20x = 570,934,000,975.68
  5. Step 5: Solve for x
    x = 570,934,000,975.68/731,383.20
  6. Step 6: Final answer
    x = 780,622.25

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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.