Home / 1,915,223.40-2,642,979.69-1,055,765.16

Finding the Fourth Proportional to 1,915,223.40, 2,642,979.69 and 1,055,765.16

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Solution

The fourth proportional to 1,915,223.40, 2,642,979.69 and 1,055,765.16 is: 1,456,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,223.40 : 2,642,979.69 = 1,055,765.16 : x
  2. Step 2: Convert to fraction form
    1,915,223.40/2,642,979.69 = 1,055,765.16/x
  3. Step 3: Cross multiply
    1,915,223.40x = 2,642,979.69 × 1,055,765.16
  4. Step 4: Simplify right side
    1,915,223.40x = 2,790,365,875,289.60
  5. Step 5: Solve for x
    x = 2,790,365,875,289.60/1,915,223.40
  6. Step 6: Final answer
    x = 1,456,940.15

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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.