Home / 1,100,845.22-1,519,148.12-642,226.46

Finding the Fourth Proportional to 1,100,845.22, 1,519,148.12 and 642,226.46

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Solution

The fourth proportional to 1,100,845.22, 1,519,148.12 and 642,226.46 is: 886,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,845.22 : 1,519,148.12 = 642,226.46 : x
  2. Step 2: Convert to fraction form
    1,100,845.22/1,519,148.12 = 642,226.46/x
  3. Step 3: Cross multiply
    1,100,845.22x = 1,519,148.12 × 642,226.46
  4. Step 4: Simplify right side
    1,100,845.22x = 975,637,119,323.26
  5. Step 5: Solve for x
    x = 975,637,119,323.26/1,100,845.22
  6. Step 6: Final answer
    x = 886,261.85

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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.