Finding the Fourth Proportional to 1,013,072.70, 1,519,609.05 and 776,876.70
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Solution
The fourth proportional to 1,013,072.70, 1,519,609.05 and 776,876.70 is: 1,165,315.05
Step by Step Solution
- Step 1: Write the proportion equation
1,013,072.70 : 1,519,609.05 = 776,876.70 : x - Step 2: Convert to fraction form
1,013,072.70/1,519,609.05 = 776,876.70/x - Step 3: Cross multiply
1,013,072.70x = 1,519,609.05 × 776,876.70 - Step 4: Simplify right side
1,013,072.70x = 1,180,548,864,054.14 - Step 5: Solve for x
x = 1,180,548,864,054.14/1,013,072.70 - Step 6: Final answer
x = 1,165,315.05
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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.