Finding the Fourth Proportional to 2,029,711.51, 2,801,001.64 and 1,213,915.07
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Solution
The fourth proportional to 2,029,711.51, 2,801,001.64 and 1,213,915.07 is: 1,675,202.65
Step by Step Solution
- Step 1: Write the proportion equation
2,029,711.51 : 2,801,001.64 = 1,213,915.07 : x - Step 2: Convert to fraction form
2,029,711.51/2,801,001.64 = 1,213,915.07/x - Step 3: Cross multiply
2,029,711.51x = 2,801,001.64 × 1,213,915.07 - Step 4: Simplify right side
2,029,711.51x = 3,400,178,081,816.13 - Step 5: Solve for x
x = 3,400,178,081,816.13/2,029,711.51 - Step 6: Final answer
x = 1,675,202.65
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1.5x scale
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.