Finding the Fourth Proportional to 1,580,911.73, 2,181,656.36 and 855,759.23
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Solution
The fourth proportional to 1,580,911.73, 2,181,656.36 and 855,759.23 is: 1,180,946.75
Step by Step Solution
- Step 1: Write the proportion equation
1,580,911.73 : 2,181,656.36 = 855,759.23 : x - Step 2: Convert to fraction form
1,580,911.73/2,181,656.36 = 855,759.23/x - Step 3: Cross multiply
1,580,911.73x = 2,181,656.36 × 855,759.23 - Step 4: Simplify right side
1,580,911.73x = 1,866,972,566,170.53 - Step 5: Solve for x
x = 1,866,972,566,170.53/1,580,911.73 - Step 6: Final answer
x = 1,180,946.75
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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.