Finding the Fourth Proportional to 1,938,121.52, 2,911,912.76 and 1,830,696.08
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Solution
The fourth proportional to 1,938,121.52, 2,911,912.76 and 1,830,696.08 is: 2,750,512.40
Step by Step Solution
- Step 1: Write the proportion equation
1,938,121.52 : 2,911,912.76 = 1,830,696.08 : x - Step 2: Convert to fraction form
1,938,121.52/2,911,912.76 = 1,830,696.08/x - Step 3: Cross multiply
1,938,121.52x = 2,911,912.76 × 1,830,696.08 - Step 4: Simplify right side
1,938,121.52x = 5,330,827,275,033.98 - Step 5: Solve for x
x = 5,330,827,275,033.98/1,938,121.52 - Step 6: Final answer
x = 2,750,512.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.