Home / 990,755.85-1,367,243.07-561,119.02

Finding the Fourth Proportional to 990,755.85, 1,367,243.07 and 561,119.02

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Solution

The fourth proportional to 990,755.85, 1,367,243.07 and 561,119.02 is: 774,344.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,755.85 : 1,367,243.07 = 561,119.02 : x
  2. Step 2: Convert to fraction form
    990,755.85/1,367,243.07 = 561,119.02/x
  3. Step 3: Cross multiply
    990,755.85x = 1,367,243.07 × 561,119.02
  4. Step 4: Simplify right side
    990,755.85x = 767,186,089,778.45
  5. Step 5: Solve for x
    x = 767,186,089,778.45/990,755.85
  6. Step 6: Final answer
    x = 774,344.24

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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.