Finding the Fourth Proportional to 738,917.84, 1,019,706.08 and 399,386.08
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Solution
The fourth proportional to 738,917.84, 1,019,706.08 and 399,386.08 is: 551,152.50
Step by Step Solution
- Step 1: Write the proportion equation
738,917.84 : 1,019,706.08 = 399,386.08 : x - Step 2: Convert to fraction form
738,917.84/1,019,706.08 = 399,386.08/x - Step 3: Cross multiply
738,917.84x = 1,019,706.08 × 399,386.08 - Step 4: Simplify right side
738,917.84x = 407,256,414,043.37 - Step 5: Solve for x
x = 407,256,414,043.37/738,917.84 - Step 6: Final answer
x = 551,152.50
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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.