Home / 1,641,868-2,265,756.38-916,728.06

Finding the Fourth Proportional to 1,641,868, 2,265,756.38 and 916,728.06

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Solution

The fourth proportional to 1,641,868, 2,265,756.38 and 916,728.06 is: 1,265,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,868 : 2,265,756.38 = 916,728.06 : x
  2. Step 2: Convert to fraction form
    1,641,868/2,265,756.38 = 916,728.06/x
  3. Step 3: Cross multiply
    1,641,868x = 2,265,756.38 × 916,728.06
  4. Step 4: Simplify right side
    1,641,868x = 2,077,082,450,670.02
  5. Step 5: Solve for x
    x = 2,077,082,450,670.02/1,641,868
  6. Step 6: Final answer
    x = 1,265,072.74

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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.