Finding the Fourth Proportional to 490,799.19, 736,215.15 and 135,783.48
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Solution
The fourth proportional to 490,799.19, 736,215.15 and 135,783.48 is: 203,679.75
Step by Step Solution
- Step 1: Write the proportion equation
490,799.19 : 736,215.15 = 135,783.48 : x - Step 2: Convert to fraction form
490,799.19/736,215.15 = 135,783.48/x - Step 3: Cross multiply
490,799.19x = 736,215.15 × 135,783.48 - Step 4: Simplify right side
490,799.19x = 99,965,855,095.72 - Step 5: Solve for x
x = 99,965,855,095.72/490,799.19 - Step 6: Final answer
x = 203,679.75
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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.