Home / 1,918,431.40-2,647,435.84-1,058,992.24

Finding the Fourth Proportional to 1,918,431.40, 2,647,435.84 and 1,058,992.24

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Solution

The fourth proportional to 1,918,431.40, 2,647,435.84 and 1,058,992.24 is: 1,461,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,431.40 : 2,647,435.84 = 1,058,992.24 : x
  2. Step 2: Convert to fraction form
    1,918,431.40/2,647,435.84 = 1,058,992.24/x
  3. Step 3: Cross multiply
    1,918,431.40x = 2,647,435.84 × 1,058,992.24
  4. Step 4: Simplify right side
    1,918,431.40x = 2,803,614,010,457.88
  5. Step 5: Solve for x
    x = 2,803,614,010,457.88/1,918,431.40
  6. Step 6: Final answer
    x = 1,461,409.57

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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.