Finding the Fourth Proportional to 500,913.24, 691,331.16 and 309,988.14
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Solution
The fourth proportional to 500,913.24, 691,331.16 and 309,988.14 is: 427,827.50
Step by Step Solution
- Step 1: Write the proportion equation
500,913.24 : 691,331.16 = 309,988.14 : x - Step 2: Convert to fraction form
500,913.24/691,331.16 = 309,988.14/x - Step 3: Cross multiply
500,913.24x = 691,331.16 × 309,988.14 - Step 4: Simplify right side
500,913.24x = 214,304,460,412.44 - Step 5: Solve for x
x = 214,304,460,412.44/500,913.24 - Step 6: Final answer
x = 427,827.50
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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.