Home / 790,613.28-1,091,046.78-428,037.23

Finding the Fourth Proportional to 790,613.28, 1,091,046.78 and 428,037.23

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Solution

The fourth proportional to 790,613.28, 1,091,046.78 and 428,037.23 is: 590,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,613.28 : 1,091,046.78 = 428,037.23 : x
  2. Step 2: Convert to fraction form
    790,613.28/1,091,046.78 = 428,037.23/x
  3. Step 3: Cross multiply
    790,613.28x = 1,091,046.78 × 428,037.23
  4. Step 4: Simplify right side
    790,613.28x = 467,008,644,239.24
  5. Step 5: Solve for x
    x = 467,008,644,239.24/790,613.28
  6. Step 6: Final answer
    x = 590,691.63

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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.