Finding the Fourth Proportional to 910,630.30, 1,256,834.30 and 543,130.99
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Solution
The fourth proportional to 910,630.30, 1,256,834.30 and 543,130.99 is: 749,618.87
Step by Step Solution
- Step 1: Write the proportion equation
910,630.30 : 1,256,834.30 = 543,130.99 : x - Step 2: Convert to fraction form
910,630.30/1,256,834.30 = 543,130.99/x - Step 3: Cross multiply
910,630.30x = 1,256,834.30 × 543,130.99 - Step 4: Simplify right side
910,630.30x = 682,625,657,624.96 - Step 5: Solve for x
x = 682,625,657,624.96/910,630.30 - Step 6: Final answer
x = 749,618.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.