Finding the Fourth Proportional to 780,396.09, 1,170,594.60 and 219,430.59
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Solution
The fourth proportional to 780,396.09, 1,170,594.60 and 219,430.59 is: 329,146.02
Step by Step Solution
- Step 1: Write the proportion equation
780,396.09 : 1,170,594.60 = 219,430.59 : x - Step 2: Convert to fraction form
780,396.09/1,170,594.60 = 219,430.59/x - Step 3: Cross multiply
780,396.09x = 1,170,594.60 × 219,430.59 - Step 4: Simplify right side
780,396.09x = 256,864,263,728.81 - Step 5: Solve for x
x = 256,864,263,728.81/780,396.09 - Step 6: Final answer
x = 329,146.02
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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.