Finding the Fourth Proportional to 490,796.79, 736,211.57 and 135,781.08
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Solution
The fourth proportional to 490,796.79, 736,211.57 and 135,781.08 is: 203,676.15
Step by Step Solution
- Step 1: Write the proportion equation
490,796.79 : 736,211.57 = 135,781.08 : x - Step 2: Convert to fraction form
490,796.79/736,211.57 = 135,781.08/x - Step 3: Cross multiply
490,796.79x = 736,211.57 × 135,781.08 - Step 4: Simplify right side
490,796.79x = 99,963,602,083.10 - Step 5: Solve for x
x = 99,963,602,083.10/490,796.79 - Step 6: Final answer
x = 203,676.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.