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Finding the Fourth Proportional to 1,988,364.83, 2,743,070.42 and 1,343,549.75

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Solution

The fourth proportional to 1,988,364.83, 2,743,070.42 and 1,343,549.75 is: 1,853,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,364.83 : 2,743,070.42 = 1,343,549.75 : x
  2. Step 2: Convert to fraction form
    1,988,364.83/2,743,070.42 = 1,343,549.75/x
  3. Step 3: Cross multiply
    1,988,364.83x = 2,743,070.42 × 1,343,549.75
  4. Step 4: Simplify right side
    1,988,364.83x = 3,685,451,570,305.65
  5. Step 5: Solve for x
    x = 3,685,451,570,305.65/1,988,364.83
  6. Step 6: Final answer
    x = 1,853,508.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.