Finding the Fourth Proportional to 1,138,713.12, 1,571,580.36 and 655,268.40
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Solution
The fourth proportional to 1,138,713.12, 1,571,580.36 and 655,268.40 is: 904,360.31
Step by Step Solution
- Step 1: Write the proportion equation
1,138,713.12 : 1,571,580.36 = 655,268.40 : x - Step 2: Convert to fraction form
1,138,713.12/1,571,580.36 = 655,268.40/x - Step 3: Cross multiply
1,138,713.12x = 1,571,580.36 × 655,268.40 - Step 4: Simplify right side
1,138,713.12x = 1,029,806,947,968.62 - Step 5: Solve for x
x = 1,029,806,947,968.62/1,138,713.12 - Step 6: Final answer
x = 904,360.31
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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.