Finding the Fourth Proportional to 1,520,415.68, 2,280,576.48 and 722,271.68
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Solution
The fourth proportional to 1,520,415.68, 2,280,576.48 and 722,271.68 is: 1,083,385.17
Step by Step Solution
- Step 1: Write the proportion equation
1,520,415.68 : 2,280,576.48 = 722,271.68 : x - Step 2: Convert to fraction form
1,520,415.68/2,280,576.48 = 722,271.68/x - Step 3: Cross multiply
1,520,415.68x = 2,280,576.48 × 722,271.68 - Step 4: Simplify right side
1,520,415.68x = 1,647,195,805,578.09 - Step 5: Solve for x
x = 1,647,195,805,578.09/1,520,415.68 - Step 6: Final answer
x = 1,083,385.17
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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.