Finding the Fourth Proportional to 553,613.76, 763,986.99 and 298,964.94
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Solution
The fourth proportional to 553,613.76, 763,986.99 and 298,964.94 is: 412,571.62
Step by Step Solution
- Step 1: Write the proportion equation
553,613.76 : 763,986.99 = 298,964.94 : x - Step 2: Convert to fraction form
553,613.76/763,986.99 = 298,964.94/x - Step 3: Cross multiply
553,613.76x = 763,986.99 × 298,964.94 - Step 4: Simplify right side
553,613.76x = 228,405,324,626.13 - Step 5: Solve for x
x = 228,405,324,626.13/553,613.76 - Step 6: Final answer
x = 412,571.62
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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.