Finding the Fourth Proportional to 1,609,320.80, 2,415,536.40 and 811,503.20
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Solution
The fourth proportional to 1,609,320.80, 2,415,536.40 and 811,503.20 is: 1,218,039.01
Step by Step Solution
- Step 1: Write the proportion equation
1,609,320.80 : 2,415,536.40 = 811,503.20 : x - Step 2: Convert to fraction form
1,609,320.80/2,415,536.40 = 811,503.20/x - Step 3: Cross multiply
1,609,320.80x = 2,415,536.40 × 811,503.20 - Step 4: Simplify right side
1,609,320.80x = 1,960,215,518,316.48 - Step 5: Solve for x
x = 1,960,215,518,316.48/1,609,320.80 - Step 6: Final answer
x = 1,218,039.01
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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.