Finding the Fourth Proportional to 1,427,562.05, 1,970,506.72 and 1,276,225.94
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Solution
The fourth proportional to 1,427,562.05, 1,970,506.72 and 1,276,225.94 is: 1,761,612.95
Step by Step Solution
- Step 1: Write the proportion equation
1,427,562.05 : 1,970,506.72 = 1,276,225.94 : x - Step 2: Convert to fraction form
1,427,562.05/1,970,506.72 = 1,276,225.94/x - Step 3: Cross multiply
1,427,562.05x = 1,970,506.72 × 1,276,225.94 - Step 4: Simplify right side
1,427,562.05x = 2,514,811,793,703.39 - Step 5: Solve for x
x = 2,514,811,793,703.39/1,427,562.05 - Step 6: Final answer
x = 1,761,612.95
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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.