Finding the Fourth Proportional to 317,772.10, 478,389.53 and 274,382.02
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Solution
The fourth proportional to 317,772.10, 478,389.53 and 274,382.02 is: 413,068.00
Step by Step Solution
- Step 1: Write the proportion equation
317,772.10 : 478,389.53 = 274,382.02 : x - Step 2: Convert to fraction form
317,772.10/478,389.53 = 274,382.02/x - Step 3: Cross multiply
317,772.10x = 478,389.53 × 274,382.02 - Step 4: Simplify right side
317,772.10x = 131,261,485,588.25 - Step 5: Solve for x
x = 131,261,485,588.25/317,772.10 - Step 6: Final answer
x = 413,068.00
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.