Home / 990,867.75-1,367,351.73-561,150.96

Finding the Fourth Proportional to 990,867.75, 1,367,351.73 and 561,150.96

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Solution

The fourth proportional to 990,867.75, 1,367,351.73 and 561,150.96 is: 774,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,867.75 : 1,367,351.73 = 561,150.96 : x
  2. Step 2: Convert to fraction form
    990,867.75/1,367,351.73 = 561,150.96/x
  3. Step 3: Cross multiply
    990,867.75x = 1,367,351.73 × 561,150.96
  4. Step 4: Simplify right side
    990,867.75x = 767,290,735,947.16
  5. Step 5: Solve for x
    x = 767,290,735,947.16/990,867.75
  6. Step 6: Final answer
    x = 774,362.41

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1.5x scale

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.