Finding the Fourth Proportional to 868,378.24, 1,198,374.42 and 505,792.72
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Solution
The fourth proportional to 868,378.24, 1,198,374.42 and 505,792.72 is: 698,001.20
Step by Step Solution
- Step 1: Write the proportion equation
868,378.24 : 1,198,374.42 = 505,792.72 : x - Step 2: Convert to fraction form
868,378.24/1,198,374.42 = 505,792.72/x - Step 3: Cross multiply
868,378.24x = 1,198,374.42 × 505,792.72 - Step 4: Simplify right side
868,378.24x = 606,129,057,470.22 - Step 5: Solve for x
x = 606,129,057,470.22/868,378.24 - Step 6: Final answer
x = 698,001.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.