Home / 1,081,405.84-1,491,741.48-628,646.80

Finding the Fourth Proportional to 1,081,405.84, 1,491,741.48 and 628,646.80

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Solution

The fourth proportional to 1,081,405.84, 1,491,741.48 and 628,646.80 is: 867,184.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,405.84 : 1,491,741.48 = 628,646.80 : x
  2. Step 2: Convert to fraction form
    1,081,405.84/1,491,741.48 = 628,646.80/x
  3. Step 3: Cross multiply
    1,081,405.84x = 1,491,741.48 × 628,646.80
  4. Step 4: Simplify right side
    1,081,405.84x = 937,778,507,829.26
  5. Step 5: Solve for x
    x = 937,778,507,829.26/1,081,405.84
  6. Step 6: Final answer
    x = 867,184.62

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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.