Finding the Fourth Proportional to 743,555.97, 1,026,110.66 and 421,328.84
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Solution
The fourth proportional to 743,555.97, 1,026,110.66 and 421,328.84 is: 581,435.73
Step by Step Solution
- Step 1: Write the proportion equation
743,555.97 : 1,026,110.66 = 421,328.84 : x - Step 2: Convert to fraction form
743,555.97/1,026,110.66 = 421,328.84/x - Step 3: Cross multiply
743,555.97x = 1,026,110.66 × 421,328.84 - Step 4: Simplify right side
743,555.97x = 432,330,006,852.24 - Step 5: Solve for x
x = 432,330,006,852.24/743,555.97 - Step 6: Final answer
x = 581,435.73
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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.