Home / 5,278,821.12-7,918,369.26-1,684,583.22

Finding the Fourth Proportional to 5,278,821.12, 7,918,369.26 and 1,684,583.22

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Solution

The fourth proportional to 5,278,821.12, 7,918,369.26 and 1,684,583.22 is: 2,526,918.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278,821.12 : 7,918,369.26 = 1,684,583.22 : x
  2. Step 2: Convert to fraction form
    5,278,821.12/7,918,369.26 = 1,684,583.22/x
  3. Step 3: Cross multiply
    5,278,821.12x = 7,918,369.26 × 1,684,583.22
  4. Step 4: Simplify right side
    5,278,821.12x = 13,339,151,985,159.82
  5. Step 5: Solve for x
    x = 13,339,151,985,159.82/5,278,821.12
  6. Step 6: Final answer
    x = 2,526,918.73

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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.