Home / 2,190,205.80-3,022,452.06-1,223,349.72

Finding the Fourth Proportional to 2,190,205.80, 3,022,452.06 and 1,223,349.72

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Solution

The fourth proportional to 2,190,205.80, 3,022,452.06 and 1,223,349.72 is: 1,688,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,205.80 : 3,022,452.06 = 1,223,349.72 : x
  2. Step 2: Convert to fraction form
    2,190,205.80/3,022,452.06 = 1,223,349.72/x
  3. Step 3: Cross multiply
    2,190,205.80x = 3,022,452.06 × 1,223,349.72
  4. Step 4: Simplify right side
    2,190,205.80x = 3,697,515,881,314.42
  5. Step 5: Solve for x
    x = 3,697,515,881,314.42/2,190,205.80
  6. Step 6: Final answer
    x = 1,688,204.77

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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.