Finding the Fourth Proportional to 739,182.05, 1,020,070.36 and 399,649.49
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Solution
The fourth proportional to 739,182.05, 1,020,070.36 and 399,649.49 is: 551,515.83
Step by Step Solution
- Step 1: Write the proportion equation
739,182.05 : 1,020,070.36 = 399,649.49 : x - Step 2: Convert to fraction form
739,182.05/1,020,070.36 = 399,649.49/x - Step 3: Cross multiply
739,182.05x = 1,020,070.36 × 399,649.49 - Step 4: Simplify right side
739,182.05x = 407,670,599,138.12 - Step 5: Solve for x
x = 407,670,599,138.12/739,182.05 - Step 6: Final answer
x = 551,515.83
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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.