Home / 790,631.73-1,091,072.43-428,055.84

Finding the Fourth Proportional to 790,631.73, 1,091,072.43 and 428,055.84

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Solution

The fourth proportional to 790,631.73, 1,091,072.43 and 428,055.84 is: 590,717.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,631.73 : 1,091,072.43 = 428,055.84 : x
  2. Step 2: Convert to fraction form
    790,631.73/1,091,072.43 = 428,055.84/x
  3. Step 3: Cross multiply
    790,631.73x = 1,091,072.43 × 428,055.84
  4. Step 4: Simplify right side
    790,631.73x = 467,039,925,524.49
  5. Step 5: Solve for x
    x = 467,039,925,524.49/790,631.73
  6. Step 6: Final answer
    x = 590,717.41

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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.