Finding the Fourth Proportional to 668,663.85, 922,756.11 and 382,190.09
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Solution
The fourth proportional to 668,663.85, 922,756.11 and 382,190.09 is: 527,422.32
Step by Step Solution
- Step 1: Write the proportion equation
668,663.85 : 922,756.11 = 382,190.09 : x - Step 2: Convert to fraction form
668,663.85/922,756.11 = 382,190.09/x - Step 3: Cross multiply
668,663.85x = 922,756.11 × 382,190.09 - Step 4: Simplify right side
668,663.85x = 352,668,243,035.84 - Step 5: Solve for x
x = 352,668,243,035.84/668,663.85 - Step 6: Final answer
x = 527,422.32
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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.