Finding the Fourth Proportional to 862,457.88, 1,190,193.50 and 518,299.05
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Solution
The fourth proportional to 862,457.88, 1,190,193.50 and 518,299.05 is: 715,253.67
Step by Step Solution
- Step 1: Write the proportion equation
862,457.88 : 1,190,193.50 = 518,299.05 : x - Step 2: Convert to fraction form
862,457.88/1,190,193.50 = 518,299.05/x - Step 3: Cross multiply
862,457.88x = 1,190,193.50 × 518,299.05 - Step 4: Simplify right side
862,457.88x = 616,876,163,209.72 - Step 5: Solve for x
x = 616,876,163,209.72/862,457.88 - Step 6: Final answer
x = 715,253.67
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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.