Home / 790,704.42-1,091,174.22-428,132.76

Finding the Fourth Proportional to 790,704.42, 1,091,174.22 and 428,132.76

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Solution

The fourth proportional to 790,704.42, 1,091,174.22 and 428,132.76 is: 590,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,704.42 : 1,091,174.22 = 428,132.76 : x
  2. Step 2: Convert to fraction form
    790,704.42/1,091,174.22 = 428,132.76/x
  3. Step 3: Cross multiply
    790,704.42x = 1,091,174.22 × 428,132.76
  4. Step 4: Simplify right side
    790,704.42x = 467,167,430,449.45
  5. Step 5: Solve for x
    x = 467,167,430,449.45/790,704.42
  6. Step 6: Final answer
    x = 590,824.36

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Double scale
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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.