Finding the Fourth Proportional to 490,215.24, 676,513.46 and 272,433.09
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Solution
The fourth proportional to 490,215.24, 676,513.46 and 272,433.09 is: 375,966.79
Step by Step Solution
- Step 1: Write the proportion equation
490,215.24 : 676,513.46 = 272,433.09 : x - Step 2: Convert to fraction form
490,215.24/676,513.46 = 272,433.09/x - Step 3: Cross multiply
490,215.24x = 676,513.46 × 272,433.09 - Step 4: Simplify right side
490,215.24x = 184,304,652,372.68 - Step 5: Solve for x
x = 184,304,652,372.68/490,215.24 - Step 6: Final answer
x = 375,966.79
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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.