Finding the Fourth Proportional to 1,128,273.36, 1,556,923.84 and 618,975.73
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Solution
The fourth proportional to 1,128,273.36, 1,556,923.84 and 618,975.73 is: 854,135.27
Step by Step Solution
- Step 1: Write the proportion equation
1,128,273.36 : 1,556,923.84 = 618,975.73 : x - Step 2: Convert to fraction form
1,128,273.36/1,556,923.84 = 618,975.73/x - Step 3: Cross multiply
1,128,273.36x = 1,556,923.84 × 618,975.73 - Step 4: Simplify right side
1,128,273.36x = 963,698,070,418.40 - Step 5: Solve for x
x = 963,698,070,418.40/1,128,273.36 - Step 6: Final answer
x = 854,135.27
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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.