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Finding the Fourth Proportional to 1,166,266.86, 1,743,010.38 and 851,386.86

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Solution

The fourth proportional to 1,166,266.86, 1,743,010.38 and 851,386.86 is: 1,272,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,266.86 : 1,743,010.38 = 851,386.86 : x
  2. Step 2: Convert to fraction form
    1,166,266.86/1,743,010.38 = 851,386.86/x
  3. Step 3: Cross multiply
    1,166,266.86x = 1,743,010.38 × 851,386.86
  4. Step 4: Simplify right side
    1,166,266.86x = 1,483,976,134,375.61
  5. Step 5: Solve for x
    x = 1,483,976,134,375.61/1,166,266.86
  6. Step 6: Final answer
    x = 1,272,415.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.