Finding the Fourth Proportional to 2,108,738.96, 2,909,944.68 and 1,249,378.64
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Solution
The fourth proportional to 2,108,738.96, 2,909,944.68 and 1,249,378.64 is: 1,724,074.34
Step by Step Solution
- Step 1: Write the proportion equation
2,108,738.96 : 2,909,944.68 = 1,249,378.64 : x - Step 2: Convert to fraction form
2,108,738.96/2,909,944.68 = 1,249,378.64/x - Step 3: Cross multiply
2,108,738.96x = 2,909,944.68 × 1,249,378.64 - Step 4: Simplify right side
2,108,738.96x = 3,635,622,726,773.64 - Step 5: Solve for x
x = 3,635,622,726,773.64/2,108,738.96 - Step 6: Final answer
x = 1,724,074.34
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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.