Home / 790,628.80-1,091,054.56-428,049.72

Finding the Fourth Proportional to 790,628.80, 1,091,054.56 and 428,049.72

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Solution

The fourth proportional to 790,628.80, 1,091,054.56 and 428,049.72 is: 590,701.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,628.80 : 1,091,054.56 = 428,049.72 : x
  2. Step 2: Convert to fraction form
    790,628.80/1,091,054.56 = 428,049.72/x
  3. Step 3: Cross multiply
    790,628.80x = 1,091,054.56 × 428,049.72
  4. Step 4: Simplify right side
    790,628.80x = 467,025,598,912.72
  5. Step 5: Solve for x
    x = 467,025,598,912.72/790,628.80
  6. Step 6: Final answer
    x = 590,701.48

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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.