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Finding the Fourth Proportional to 3,739,069.70, 5,608,604.55 and 1,214,980.10

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Solution

The fourth proportional to 3,739,069.70, 5,608,604.55 and 1,214,980.10 is: 1,822,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739,069.70 : 5,608,604.55 = 1,214,980.10 : x
  2. Step 2: Convert to fraction form
    3,739,069.70/5,608,604.55 = 1,214,980.10/x
  3. Step 3: Cross multiply
    3,739,069.70x = 5,608,604.55 × 1,214,980.10
  4. Step 4: Simplify right side
    3,739,069.70x = 6,814,342,917,019.46
  5. Step 5: Solve for x
    x = 6,814,342,917,019.46/3,739,069.70
  6. Step 6: Final answer
    x = 1,822,470.15

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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.