Finding the Fourth Proportional to 1,117,738, 1,542,478.62 and 608,444.20
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Solution
The fourth proportional to 1,117,738, 1,542,478.62 and 608,444.20 is: 839,653.09
Step by Step Solution
- Step 1: Write the proportion equation
1,117,738 : 1,542,478.62 = 608,444.20 : x - Step 2: Convert to fraction form
1,117,738/1,542,478.62 = 608,444.20/x - Step 3: Cross multiply
1,117,738x = 1,542,478.62 × 608,444.20 - Step 4: Simplify right side
1,117,738x = 938,512,169,963.00 - Step 5: Solve for x
x = 938,512,169,963.00/1,117,738 - Step 6: Final answer
x = 839,653.09
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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.