Home / 790,632.86-1,091,071.78-428,056.62

Finding the Fourth Proportional to 790,632.86, 1,091,071.78 and 428,056.62

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Solution

The fourth proportional to 790,632.86, 1,091,071.78 and 428,056.62 is: 590,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,632.86 : 1,091,071.78 = 428,056.62 : x
  2. Step 2: Convert to fraction form
    790,632.86/1,091,071.78 = 428,056.62/x
  3. Step 3: Cross multiply
    790,632.86x = 1,091,071.78 × 428,056.62
  4. Step 4: Simplify right side
    790,632.86x = 467,040,498,324.18
  5. Step 5: Solve for x
    x = 467,040,498,324.18/790,632.86
  6. Step 6: Final answer
    x = 590,717.29

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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.