Finding the Fourth Proportional to 816,881.50, 1,126,114.71 and 540,776.68
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Solution
The fourth proportional to 816,881.50, 1,126,114.71 and 540,776.68 is: 745,489.49
Step by Step Solution
- Step 1: Write the proportion equation
816,881.50 : 1,126,114.71 = 540,776.68 : x - Step 2: Convert to fraction form
816,881.50/1,126,114.71 = 540,776.68/x - Step 3: Cross multiply
816,881.50x = 1,126,114.71 × 540,776.68 - Step 4: Simplify right side
816,881.50x = 608,976,574,172.96 - Step 5: Solve for x
x = 608,976,574,172.96/816,881.50 - Step 6: Final answer
x = 745,489.49
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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.