Home / 1,189,133.12-1,640,317.43-758,928.35

Finding the Fourth Proportional to 1,189,133.12, 1,640,317.43 and 758,928.35

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Solution

The fourth proportional to 1,189,133.12, 1,640,317.43 and 758,928.35 is: 1,046,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,133.12 : 1,640,317.43 = 758,928.35 : x
  2. Step 2: Convert to fraction form
    1,189,133.12/1,640,317.43 = 758,928.35/x
  3. Step 3: Cross multiply
    1,189,133.12x = 1,640,317.43 × 758,928.35
  4. Step 4: Simplify right side
    1,189,133.12x = 1,244,883,396,831.50
  5. Step 5: Solve for x
    x = 1,244,883,396,831.50/1,189,133.12
  6. Step 6: Final answer
    x = 1,046,883.13

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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.