Finding the Fourth Proportional to 572,411.99, 789,888.97 and 317,743.13
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Solution
The fourth proportional to 572,411.99, 789,888.97 and 317,743.13 is: 438,463.55
Step by Step Solution
- Step 1: Write the proportion equation
572,411.99 : 789,888.97 = 317,743.13 : x - Step 2: Convert to fraction form
572,411.99/789,888.97 = 317,743.13/x - Step 3: Cross multiply
572,411.99x = 789,888.97 × 317,743.13 - Step 4: Simplify right side
572,411.99x = 250,981,793,680.28 - Step 5: Solve for x
x = 250,981,793,680.28/572,411.99 - Step 6: Final answer
x = 438,463.55
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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.