Finding the Fourth Proportional to 989,174.60, 1,482,986.77 and 390,583.81
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Solution
The fourth proportional to 989,174.60, 1,482,986.77 and 390,583.81 is: 585,569.65
Step by Step Solution
- Step 1: Write the proportion equation
989,174.60 : 1,482,986.77 = 390,583.81 : x - Step 2: Convert to fraction form
989,174.60/1,482,986.77 = 390,583.81/x - Step 3: Cross multiply
989,174.60x = 1,482,986.77 × 390,583.81 - Step 4: Simplify right side
989,174.60x = 579,230,622,806.19 - Step 5: Solve for x
x = 579,230,622,806.19/989,174.60 - Step 6: Final answer
x = 585,569.65
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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.