Finding the Fourth Proportional to 427,963.64, 641,035.08 and 347,624.19
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Solution
The fourth proportional to 427,963.64, 641,035.08 and 347,624.19 is: 520,696.81
Step by Step Solution
- Step 1: Write the proportion equation
427,963.64 : 641,035.08 = 347,624.19 : x - Step 2: Convert to fraction form
427,963.64/641,035.08 = 347,624.19/x - Step 3: Cross multiply
427,963.64x = 641,035.08 × 347,624.19 - Step 4: Simplify right side
427,963.64x = 222,839,300,446.59 - Step 5: Solve for x
x = 222,839,300,446.59/427,963.64 - Step 6: Final answer
x = 520,696.81
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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.