Finding the Fourth Proportional to 1,121,576.50, 1,547,782.06 and 612,284.14
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Solution
The fourth proportional to 1,121,576.50, 1,547,782.06 and 612,284.14 is: 844,955.66
Step by Step Solution
- Step 1: Write the proportion equation
1,121,576.50 : 1,547,782.06 = 612,284.14 : x - Step 2: Convert to fraction form
1,121,576.50/1,547,782.06 = 612,284.14/x - Step 3: Cross multiply
1,121,576.50x = 1,547,782.06 × 612,284.14 - Step 4: Simplify right side
1,121,576.50x = 947,682,407,514.53 - Step 5: Solve for x
x = 947,682,407,514.53/1,121,576.50 - Step 6: Final answer
x = 844,955.66
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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.