Finding the Fourth Proportional to 2,155,623.44, 2,974,718.94 and 1,188,843.08
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Solution
The fourth proportional to 2,155,623.44, 2,974,718.94 and 1,188,843.08 is: 1,640,580.61
Step by Step Solution
- Step 1: Write the proportion equation
2,155,623.44 : 2,974,718.94 = 1,188,843.08 : x - Step 2: Convert to fraction form
2,155,623.44/2,974,718.94 = 1,188,843.08/x - Step 3: Cross multiply
2,155,623.44x = 2,974,718.94 × 1,188,843.08 - Step 4: Simplify right side
2,155,623.44x = 3,536,474,026,763.94 - Step 5: Solve for x
x = 3,536,474,026,763.94/2,155,623.44 - Step 6: Final answer
x = 1,640,580.61
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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.