Home / 1,897,083.82-2,618,829.66-1,209,677.05

Finding the Fourth Proportional to 1,897,083.82, 2,618,829.66 and 1,209,677.05

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Solution

The fourth proportional to 1,897,083.82, 2,618,829.66 and 1,209,677.05 is: 1,669,898.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897,083.82 : 2,618,829.66 = 1,209,677.05 : x
  2. Step 2: Convert to fraction form
    1,897,083.82/2,618,829.66 = 1,209,677.05/x
  3. Step 3: Cross multiply
    1,897,083.82x = 2,618,829.66 × 1,209,677.05
  4. Step 4: Simplify right side
    1,897,083.82x = 3,167,938,137,561.30
  5. Step 5: Solve for x
    x = 3,167,938,137,561.30/1,897,083.82
  6. Step 6: Final answer
    x = 1,669,898.88

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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.