Home / 1,861,154.42-2,568,211.72-1,045,172.57

Finding the Fourth Proportional to 1,861,154.42, 2,568,211.72 and 1,045,172.57

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Solution

The fourth proportional to 1,861,154.42, 2,568,211.72 and 1,045,172.57 is: 1,442,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861,154.42 : 2,568,211.72 = 1,045,172.57 : x
  2. Step 2: Convert to fraction form
    1,861,154.42/2,568,211.72 = 1,045,172.57/x
  3. Step 3: Cross multiply
    1,861,154.42x = 2,568,211.72 × 1,045,172.57
  4. Step 4: Simplify right side
    1,861,154.42x = 2,684,224,428,242.53
  5. Step 5: Solve for x
    x = 2,684,224,428,242.53/1,861,154.42
  6. Step 6: Final answer
    x = 1,442,236.28

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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.