Finding the Fourth Proportional to 1,503,975.98, 2,075,478.04 and 815,640.97
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Solution
The fourth proportional to 1,503,975.98, 2,075,478.04 and 815,640.97 is: 1,125,579.75
Step by Step Solution
- Step 1: Write the proportion equation
1,503,975.98 : 2,075,478.04 = 815,640.97 : x - Step 2: Convert to fraction form
1,503,975.98/2,075,478.04 = 815,640.97/x - Step 3: Cross multiply
1,503,975.98x = 2,075,478.04 × 815,640.97 - Step 4: Simplify right side
1,503,975.98x = 1,692,844,911,056.41 - Step 5: Solve for x
x = 1,692,844,911,056.41/1,503,975.98 - Step 6: Final answer
x = 1,125,579.75
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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.