Finding the Fourth Proportional to 713,869.49, 1,070,689.33 and 208,311.77
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Solution
The fourth proportional to 713,869.49, 1,070,689.33 and 208,311.77 is: 312,434.12
Step by Step Solution
- Step 1: Write the proportion equation
713,869.49 : 1,070,689.33 = 208,311.77 : x - Step 2: Convert to fraction form
713,869.49/1,070,689.33 = 208,311.77/x - Step 3: Cross multiply
713,869.49x = 1,070,689.33 × 208,311.77 - Step 4: Simplify right side
713,869.49x = 223,037,183,578.19 - Step 5: Solve for x
x = 223,037,183,578.19/713,869.49 - Step 6: Final answer
x = 312,434.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.