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Finding the Fourth Proportional to 790,532, 1,185,801 and 191,492

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Solution

The fourth proportional to 790,532, 1,185,801 and 191,492 is: 287,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,532 : 1,185,801 = 191,492 : x
  2. Step 2: Convert to fraction form
    790,532/1,185,801 = 191,492/x
  3. Step 3: Cross multiply
    790,532x = 1,185,801 × 191,492
  4. Step 4: Simplify right side
    790,532x = 227,071,405,092
  5. Step 5: Solve for x
    x = 227,071,405,092/790,532
  6. Step 6: Final answer
    x = 287,238.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.