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Finding the Fourth Proportional to 1,743,762.60, 2,613,699.90 and 678,450.60

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Solution

The fourth proportional to 1,743,762.60, 2,613,699.90 and 678,450.60 is: 1,016,919.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,743,762.60 : 2,613,699.90 = 678,450.60 : x
  2. Step 2: Convert to fraction form
    1,743,762.60/2,613,699.90 = 678,450.60/x
  3. Step 3: Cross multiply
    1,743,762.60x = 2,613,699.90 × 678,450.60
  4. Step 4: Simplify right side
    1,743,762.60x = 1,773,266,265,374.94
  5. Step 5: Solve for x
    x = 1,773,266,265,374.94/1,743,762.60
  6. Step 6: Final answer
    x = 1,016,919.54

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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.