Home / 790,889.55-1,091,414.09-428,310.47

Finding the Fourth Proportional to 790,889.55, 1,091,414.09 and 428,310.47

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Solution

The fourth proportional to 790,889.55, 1,091,414.09 and 428,310.47 is: 591,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,889.55 : 1,091,414.09 = 428,310.47 : x
  2. Step 2: Convert to fraction form
    790,889.55/1,091,414.09 = 428,310.47/x
  3. Step 3: Cross multiply
    790,889.55x = 1,091,414.09 × 428,310.47
  4. Step 4: Simplify right side
    790,889.55x = 467,464,074,253.90
  5. Step 5: Solve for x
    x = 467,464,074,253.90/790,889.55
  6. Step 6: Final answer
    x = 591,061.13

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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.