Finding the Fourth Proportional to 874,735.26, 1,312,517.61 and 520,449.18
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Solution
The fourth proportional to 874,735.26, 1,312,517.61 and 520,449.18 is: 780,920.52
Step by Step Solution
- Step 1: Write the proportion equation
874,735.26 : 1,312,517.61 = 520,449.18 : x - Step 2: Convert to fraction form
874,735.26/1,312,517.61 = 520,449.18/x - Step 3: Cross multiply
874,735.26x = 1,312,517.61 × 520,449.18 - Step 4: Simplify right side
874,735.26x = 683,098,713,860.06 - Step 5: Solve for x
x = 683,098,713,860.06/874,735.26 - Step 6: Final answer
x = 780,920.52
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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.