Finding the Fourth Proportional to 1,503,976.98, 2,075,479.42 and 815,641.97
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Solution
The fourth proportional to 1,503,976.98, 2,075,479.42 and 815,641.97 is: 1,125,581.14
Step by Step Solution
- Step 1: Write the proportion equation
1,503,976.98 : 2,075,479.42 = 815,641.97 : x - Step 2: Convert to fraction form
1,503,976.98/2,075,479.42 = 815,641.97/x - Step 3: Cross multiply
1,503,976.98x = 2,075,479.42 × 815,641.97 - Step 4: Simplify right side
1,503,976.98x = 1,692,848,122,823.26 - Step 5: Solve for x
x = 1,692,848,122,823.26/1,503,976.98 - Step 6: Final answer
x = 1,125,581.14
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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.