Home / 1,938,390.24-2,674,725.36-1,078,986.72

Finding the Fourth Proportional to 1,938,390.24, 2,674,725.36 and 1,078,986.72

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Solution

The fourth proportional to 1,938,390.24, 2,674,725.36 and 1,078,986.72 is: 1,488,860.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,390.24 : 2,674,725.36 = 1,078,986.72 : x
  2. Step 2: Convert to fraction form
    1,938,390.24/2,674,725.36 = 1,078,986.72/x
  3. Step 3: Cross multiply
    1,938,390.24x = 2,674,725.36 × 1,078,986.72
  4. Step 4: Simplify right side
    1,938,390.24x = 2,885,993,143,087.22
  5. Step 5: Solve for x
    x = 2,885,993,143,087.22/1,938,390.24
  6. Step 6: Final answer
    x = 1,488,860.75

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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.