Finding the Fourth Proportional to 838,380.74, 1,263,219.91 and 691,901.96
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Solution
The fourth proportional to 838,380.74, 1,263,219.91 and 691,901.96 is: 1,042,514.80
Step by Step Solution
- Step 1: Write the proportion equation
838,380.74 : 1,263,219.91 = 691,901.96 : x - Step 2: Convert to fraction form
838,380.74/1,263,219.91 = 691,901.96/x - Step 3: Cross multiply
838,380.74x = 1,263,219.91 × 691,901.96 - Step 4: Simplify right side
838,380.74x = 874,024,331,640.02 - Step 5: Solve for x
x = 874,024,331,640.02/838,380.74 - Step 6: Final answer
x = 1,042,514.80
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.