Finding the Fourth Proportional to 1,449,811.79, 1,999,933.97 and 1,347,177.09
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Solution
The fourth proportional to 1,449,811.79, 1,999,933.97 and 1,347,177.09 is: 1,858,355.17
Step by Step Solution
- Step 1: Write the proportion equation
1,449,811.79 : 1,999,933.97 = 1,347,177.09 : x - Step 2: Convert to fraction form
1,449,811.79/1,999,933.97 = 1,347,177.09/x - Step 3: Cross multiply
1,449,811.79x = 1,999,933.97 × 1,347,177.09 - Step 4: Simplify right side
1,449,811.79x = 2,694,265,219,160.86 - Step 5: Solve for x
x = 2,694,265,219,160.86/1,449,811.79 - Step 6: Final answer
x = 1,858,355.17
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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.