Finding the Fourth Proportional to 1,938,880.99, 2,674,963.19 and 1,122,639.13
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Solution
The fourth proportional to 1,938,880.99, 2,674,963.19 and 1,122,639.13 is: 1,548,840.98
Step by Step Solution
- Step 1: Write the proportion equation
1,938,880.99 : 2,674,963.19 = 1,122,639.13 : x - Step 2: Convert to fraction form
1,938,880.99/2,674,963.19 = 1,122,639.13/x - Step 3: Cross multiply
1,938,880.99x = 2,674,963.19 × 1,122,639.13 - Step 4: Simplify right side
1,938,880.99x = 3,003,018,329,415.61 - Step 5: Solve for x
x = 3,003,018,329,415.61/1,938,880.99 - Step 6: Final answer
x = 1,548,840.98
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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.