Finding the Fourth Proportional to 1,473,212, 2,209,811.70 and 408,251
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Solution
The fourth proportional to 1,473,212, 2,209,811.70 and 408,251 is: 612,374.75
Step by Step Solution
- Step 1: Write the proportion equation
1,473,212 : 2,209,811.70 = 408,251 : x - Step 2: Convert to fraction form
1,473,212/2,209,811.70 = 408,251/x - Step 3: Cross multiply
1,473,212x = 2,209,811.70 × 408,251 - Step 4: Simplify right side
1,473,212x = 902,157,836,336.70 - Step 5: Solve for x
x = 902,157,836,336.70/1,473,212 - Step 6: Final answer
x = 612,374.75
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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.