Home / 1,189,131.75-1,640,315.53-758,926.98

Finding the Fourth Proportional to 1,189,131.75, 1,640,315.53 and 758,926.98

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Solution

The fourth proportional to 1,189,131.75, 1,640,315.53 and 758,926.98 is: 1,046,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,131.75 : 1,640,315.53 = 758,926.98 : x
  2. Step 2: Convert to fraction form
    1,189,131.75/1,640,315.53 = 758,926.98/x
  3. Step 3: Cross multiply
    1,189,131.75x = 1,640,315.53 × 758,926.98
  4. Step 4: Simplify right side
    1,189,131.75x = 1,244,879,711,430.00
  5. Step 5: Solve for x
    x = 1,244,879,711,430.00/1,189,131.75
  6. Step 6: Final answer
    x = 1,046,881.23

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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.