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Finding the Fourth Proportional to 852,997.04, 1,279,676 and 320,522.68

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Solution

The fourth proportional to 852,997.04, 1,279,676 and 320,522.68 is: 480,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,997.04 : 1,279,676 = 320,522.68 : x
  2. Step 2: Convert to fraction form
    852,997.04/1,279,676 = 320,522.68/x
  3. Step 3: Cross multiply
    852,997.04x = 1,279,676 × 320,522.68
  4. Step 4: Simplify right side
    852,997.04x = 410,165,181,051.68
  5. Step 5: Solve for x
    x = 410,165,181,051.68/852,997.04
  6. Step 6: Final answer
    x = 480,851.82

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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.