Finding the Fourth Proportional to 615,438.19, 849,270.15 and 343,523.62
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Solution
The fourth proportional to 615,438.19, 849,270.15 and 343,523.62 is: 474,043.31
Step by Step Solution
- Step 1: Write the proportion equation
615,438.19 : 849,270.15 = 343,523.62 : x - Step 2: Convert to fraction form
615,438.19/849,270.15 = 343,523.62/x - Step 3: Cross multiply
615,438.19x = 849,270.15 × 343,523.62 - Step 4: Simplify right side
615,438.19x = 291,744,352,570.39 - Step 5: Solve for x
x = 291,744,352,570.39/615,438.19 - Step 6: Final answer
x = 474,043.31
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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.