Finding the Fourth Proportional to 739,449.84, 1,020,440.78 and 399,918.09
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Solution
The fourth proportional to 739,449.84, 1,020,440.78 and 399,918.09 is: 551,886.96
Step by Step Solution
- Step 1: Write the proportion equation
739,449.84 : 1,020,440.78 = 399,918.09 : x - Step 2: Convert to fraction form
739,449.84/1,020,440.78 = 399,918.09/x - Step 3: Cross multiply
739,449.84x = 1,020,440.78 × 399,918.09 - Step 4: Simplify right side
739,449.84x = 408,092,725,696.12 - Step 5: Solve for x
x = 408,092,725,696.12/739,449.84 - Step 6: Final answer
x = 551,886.96
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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.