Home / 790,726.25-1,091,200.60-428,150

Finding the Fourth Proportional to 790,726.25, 1,091,200.60 and 428,150

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Solution

The fourth proportional to 790,726.25, 1,091,200.60 and 428,150 is: 590,846.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,726.25 : 1,091,200.60 = 428,150 : x
  2. Step 2: Convert to fraction form
    790,726.25/1,091,200.60 = 428,150/x
  3. Step 3: Cross multiply
    790,726.25x = 1,091,200.60 × 428,150
  4. Step 4: Simplify right side
    790,726.25x = 467,197,536,890.00
  5. Step 5: Solve for x
    x = 467,197,536,890.00/790,726.25
  6. Step 6: Final answer
    x = 590,846.12

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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.