Home / 1,487,790.66-2,054,139.81-1,143,012.54

Finding the Fourth Proportional to 1,487,790.66, 2,054,139.81 and 1,143,012.54

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Solution

The fourth proportional to 1,487,790.66, 2,054,139.81 and 1,143,012.54 is: 1,578,116.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,790.66 : 2,054,139.81 = 1,143,012.54 : x
  2. Step 2: Convert to fraction form
    1,487,790.66/2,054,139.81 = 1,143,012.54/x
  3. Step 3: Cross multiply
    1,487,790.66x = 2,054,139.81 × 1,143,012.54
  4. Step 4: Simplify right side
    1,487,790.66x = 2,347,907,561,743.22
  5. Step 5: Solve for x
    x = 2,347,907,561,743.22/1,487,790.66
  6. Step 6: Final answer
    x = 1,578,116.88

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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.