Finding the Fourth Proportional to 891,731.70, 1,230,550.79 and 509,783.09
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Solution
The fourth proportional to 891,731.70, 1,230,550.79 and 509,783.09 is: 703,478.38
Step by Step Solution
- Step 1: Write the proportion equation
891,731.70 : 1,230,550.79 = 509,783.09 : x - Step 2: Convert to fraction form
891,731.70/1,230,550.79 = 509,783.09/x - Step 3: Cross multiply
891,731.70x = 1,230,550.79 × 509,783.09 - Step 4: Simplify right side
891,731.70x = 627,313,975,426.47 - Step 5: Solve for x
x = 627,313,975,426.47/891,731.70 - Step 6: Final answer
x = 703,478.38
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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.