Home / 1,190,190.33-1,642,457.52-646,321.64

Finding the Fourth Proportional to 1,190,190.33, 1,642,457.52 and 646,321.64

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Solution

The fourth proportional to 1,190,190.33, 1,642,457.52 and 646,321.64 is: 891,921.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,190.33 : 1,642,457.52 = 646,321.64 : x
  2. Step 2: Convert to fraction form
    1,190,190.33/1,642,457.52 = 646,321.64/x
  3. Step 3: Cross multiply
    1,190,190.33x = 1,642,457.52 × 646,321.64
  4. Step 4: Simplify right side
    1,190,190.33x = 1,061,555,829,744.45
  5. Step 5: Solve for x
    x = 1,061,555,829,744.45/1,190,190.33
  6. Step 6: Final answer
    x = 891,921.07

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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.