Finding the Fourth Proportional to 2,153,450.64, 2,971,738.12 and 1,223,152.08
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Solution
The fourth proportional to 2,153,450.64, 2,971,738.12 and 1,223,152.08 is: 1,687,936.37
Step by Step Solution
- Step 1: Write the proportion equation
2,153,450.64 : 2,971,738.12 = 1,223,152.08 : x - Step 2: Convert to fraction form
2,153,450.64/2,971,738.12 = 1,223,152.08/x - Step 3: Cross multiply
2,153,450.64x = 2,971,738.12 × 1,223,152.08 - Step 4: Simplify right side
2,153,450.64x = 3,634,887,662,693.29 - Step 5: Solve for x
x = 3,634,887,662,693.29/2,153,450.64 - Step 6: Final answer
x = 1,687,936.37
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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.