Finding the Fourth Proportional to 1,622,423.62, 2,239,244.10 and 1,042,371.86
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Solution
The fourth proportional to 1,622,423.62, 2,239,244.10 and 1,042,371.86 is: 1,438,665.59
Step by Step Solution
- Step 1: Write the proportion equation
1,622,423.62 : 2,239,244.10 = 1,042,371.86 : x - Step 2: Convert to fraction form
1,622,423.62/2,239,244.10 = 1,042,371.86/x - Step 3: Cross multiply
1,622,423.62x = 2,239,244.10 × 1,042,371.86 - Step 4: Simplify right side
1,622,423.62x = 2,334,125,037,511.03 - Step 5: Solve for x
x = 2,334,125,037,511.03/1,622,423.62 - Step 6: Final answer
x = 1,438,665.59
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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.