Finding the Fourth Proportional to 780,365.28, 1,170,641.62 and 274,821.68
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Solution
The fourth proportional to 780,365.28, 1,170,641.62 and 274,821.68 is: 412,265.52
Step by Step Solution
- Step 1: Write the proportion equation
780,365.28 : 1,170,641.62 = 274,821.68 : x - Step 2: Convert to fraction form
780,365.28/1,170,641.62 = 274,821.68/x - Step 3: Cross multiply
780,365.28x = 1,170,641.62 × 274,821.68 - Step 4: Simplify right side
780,365.28x = 321,717,696,686.32 - Step 5: Solve for x
x = 321,717,696,686.32/780,365.28 - Step 6: Final answer
x = 412,265.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.