Finding the Fourth Proportional to 988,657.20, 1,482,985.80 and 971,161.20
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Solution
The fourth proportional to 988,657.20, 1,482,985.80 and 971,161.20 is: 1,456,741.80
Step by Step Solution
- Step 1: Write the proportion equation
988,657.20 : 1,482,985.80 = 971,161.20 : x - Step 2: Convert to fraction form
988,657.20/1,482,985.80 = 971,161.20/x - Step 3: Cross multiply
988,657.20x = 1,482,985.80 × 971,161.20 - Step 4: Simplify right side
988,657.20x = 1,440,218,269,110.96 - Step 5: Solve for x
x = 1,440,218,269,110.96/988,657.20 - Step 6: Final answer
x = 1,456,741.80
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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.