Finding the Fourth Proportional to 558,414.88, 770,490.84 and 316,642.96
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Solution
The fourth proportional to 558,414.88, 770,490.84 and 316,642.96 is: 436,898.28
Step by Step Solution
- Step 1: Write the proportion equation
558,414.88 : 770,490.84 = 316,642.96 : x - Step 2: Convert to fraction form
558,414.88/770,490.84 = 316,642.96/x - Step 3: Cross multiply
558,414.88x = 770,490.84 × 316,642.96 - Step 4: Simplify right side
558,414.88x = 243,970,500,230.49 - Step 5: Solve for x
x = 243,970,500,230.49/558,414.88 - Step 6: Final answer
x = 436,898.28
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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.