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Finding the Fourth Proportional to 1,805,686.89, 2,707,742.93 and 682,968.57

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Solution

The fourth proportional to 1,805,686.89, 2,707,742.93 and 682,968.57 is: 1,024,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,686.89 : 2,707,742.93 = 682,968.57 : x
  2. Step 2: Convert to fraction form
    1,805,686.89/2,707,742.93 = 682,968.57/x
  3. Step 3: Cross multiply
    1,805,686.89x = 2,707,742.93 × 682,968.57
  4. Step 4: Simplify right side
    1,805,686.89x = 1,849,303,315,122.29
  5. Step 5: Solve for x
    x = 1,849,303,315,122.29/1,805,686.89
  6. Step 6: Final answer
    x = 1,024,155.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.