Home / 1,449,719.57-2,000,617.67-805,139.75

Finding the Fourth Proportional to 1,449,719.57, 2,000,617.67 and 805,139.75

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Solution

The fourth proportional to 1,449,719.57, 2,000,617.67 and 805,139.75 is: 1,111,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,719.57 : 2,000,617.67 = 805,139.75 : x
  2. Step 2: Convert to fraction form
    1,449,719.57/2,000,617.67 = 805,139.75/x
  3. Step 3: Cross multiply
    1,449,719.57x = 2,000,617.67 × 805,139.75
  4. Step 4: Simplify right side
    1,449,719.57x = 1,610,776,796,640.60
  5. Step 5: Solve for x
    x = 1,610,776,796,640.60/1,449,719.57
  6. Step 6: Final answer
    x = 1,111,095.43

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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.