Finding the Fourth Proportional to 739,455.07, 1,020,447.99 and 399,923.32
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Solution
The fourth proportional to 739,455.07, 1,020,447.99 and 399,923.32 is: 551,894.18
Step by Step Solution
- Step 1: Write the proportion equation
739,455.07 : 1,020,447.99 = 399,923.32 : x - Step 2: Convert to fraction form
739,455.07/1,020,447.99 = 399,923.32/x - Step 3: Cross multiply
739,455.07x = 1,020,447.99 × 399,923.32 - Step 4: Simplify right side
739,455.07x = 408,100,948,048.13 - Step 5: Solve for x
x = 408,100,948,048.13/739,455.07 - Step 6: Final answer
x = 551,894.18
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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.