Finding the Fourth Proportional to 572,069.23, 789,403.36 and 339,456.08
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Solution
The fourth proportional to 572,069.23, 789,403.36 and 339,456.08 is: 468,418.43
Step by Step Solution
- Step 1: Write the proportion equation
572,069.23 : 789,403.36 = 339,456.08 : x - Step 2: Convert to fraction form
572,069.23/789,403.36 = 339,456.08/x - Step 3: Cross multiply
572,069.23x = 789,403.36 × 339,456.08 - Step 4: Simplify right side
572,069.23x = 267,967,767,282.52 - Step 5: Solve for x
x = 267,967,767,282.52/572,069.23 - Step 6: Final answer
x = 468,418.43
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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.