Finding the Fourth Proportional to 817,736.62, 1,128,476.60 and 455,152.70
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Solution
The fourth proportional to 817,736.62, 1,128,476.60 and 455,152.70 is: 628,110.76
Step by Step Solution
- Step 1: Write the proportion equation
817,736.62 : 1,128,476.60 = 455,152.70 : x - Step 2: Convert to fraction form
817,736.62/1,128,476.60 = 455,152.70/x - Step 3: Cross multiply
817,736.62x = 1,128,476.60 × 455,152.70 - Step 4: Simplify right side
817,736.62x = 513,629,171,376.82 - Step 5: Solve for x
x = 513,629,171,376.82/817,736.62 - Step 6: Final answer
x = 628,110.76
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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.