Home / 1,856,350.47-2,556,971.94-1,311,540.51

Finding the Fourth Proportional to 1,856,350.47, 2,556,971.94 and 1,311,540.51

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Solution

The fourth proportional to 1,856,350.47, 2,556,971.94 and 1,311,540.51 is: 1,806,540.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856,350.47 : 2,556,971.94 = 1,311,540.51 : x
  2. Step 2: Convert to fraction form
    1,856,350.47/2,556,971.94 = 1,311,540.51/x
  3. Step 3: Cross multiply
    1,856,350.47x = 2,556,971.94 × 1,311,540.51
  4. Step 4: Simplify right side
    1,856,350.47x = 3,353,572,282,243.29
  5. Step 5: Solve for x
    x = 3,353,572,282,243.29/1,856,350.47
  6. Step 6: Final answer
    x = 1,806,540.49

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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.