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Finding the Fourth Proportional to 2,868,890.33, 4,303,903.38 and 819,568.57

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Solution

The fourth proportional to 2,868,890.33, 4,303,903.38 and 819,568.57 is: 1,229,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868,890.33 : 4,303,903.38 = 819,568.57 : x
  2. Step 2: Convert to fraction form
    2,868,890.33/4,303,903.38 = 819,568.57/x
  3. Step 3: Cross multiply
    2,868,890.33x = 4,303,903.38 × 819,568.57
  4. Step 4: Simplify right side
    2,868,890.33x = 3,527,343,938,564.77
  5. Step 5: Solve for x
    x = 3,527,343,938,564.77/2,868,890.33
  6. Step 6: Final answer
    x = 1,229,515.09

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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.