Finding the Fourth Proportional to 615,439.19, 849,271.53 and 343,524.62
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Solution
The fourth proportional to 615,439.19, 849,271.53 and 343,524.62 is: 474,044.69
Step by Step Solution
- Step 1: Write the proportion equation
615,439.19 : 849,271.53 = 343,524.62 : x - Step 2: Convert to fraction form
615,439.19/849,271.53 = 343,524.62/x - Step 3: Cross multiply
615,439.19x = 849,271.53 × 343,524.62 - Step 4: Simplify right side
615,439.19x = 291,745,679,620.07 - Step 5: Solve for x
x = 291,745,679,620.07/615,439.19 - Step 6: Final answer
x = 474,044.69
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1.5x scale
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.