Home / 1,213,336.10-1,820,004.15-1,122,097.70

Finding the Fourth Proportional to 1,213,336.10, 1,820,004.15 and 1,122,097.70

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Solution

The fourth proportional to 1,213,336.10, 1,820,004.15 and 1,122,097.70 is: 1,683,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,336.10 : 1,820,004.15 = 1,122,097.70 : x
  2. Step 2: Convert to fraction form
    1,213,336.10/1,820,004.15 = 1,122,097.70/x
  3. Step 3: Cross multiply
    1,213,336.10x = 1,820,004.15 × 1,122,097.70
  4. Step 4: Simplify right side
    1,213,336.10x = 2,042,222,470,705.45
  5. Step 5: Solve for x
    x = 2,042,222,470,705.45/1,213,336.10
  6. Step 6: Final answer
    x = 1,683,146.55

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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.