Home / 2,190,669.24-3,023,090.22-1,223,813.40

Finding the Fourth Proportional to 2,190,669.24, 3,023,090.22 and 1,223,813.40

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Solution

The fourth proportional to 2,190,669.24, 3,023,090.22 and 1,223,813.40 is: 1,688,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,669.24 : 3,023,090.22 = 1,223,813.40 : x
  2. Step 2: Convert to fraction form
    2,190,669.24/3,023,090.22 = 1,223,813.40/x
  3. Step 3: Cross multiply
    2,190,669.24x = 3,023,090.22 × 1,223,813.40
  4. Step 4: Simplify right side
    2,190,669.24x = 3,699,698,320,644.95
  5. Step 5: Solve for x
    x = 3,699,698,320,644.95/2,190,669.24
  6. Step 6: Final answer
    x = 1,688,843.87

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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.