Home / 1,800,686.90-2,485,217.49-1,121,842.10

Finding the Fourth Proportional to 1,800,686.90, 2,485,217.49 and 1,121,842.10

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Solution

The fourth proportional to 1,800,686.90, 2,485,217.49 and 1,121,842.10 is: 1,548,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800,686.90 : 2,485,217.49 = 1,121,842.10 : x
  2. Step 2: Convert to fraction form
    1,800,686.90/2,485,217.49 = 1,121,842.10/x
  3. Step 3: Cross multiply
    1,800,686.90x = 2,485,217.49 × 1,121,842.10
  4. Step 4: Simplify right side
    1,800,686.90x = 2,788,021,607,938.33
  5. Step 5: Solve for x
    x = 2,788,021,607,938.33/1,800,686.90
  6. Step 6: Final answer
    x = 1,548,310.04

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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.