Finding the Fourth Proportional to 809,854.98, 1,117,578.19 and 447,253.12
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Solution
The fourth proportional to 809,854.98, 1,117,578.19 and 447,253.12 is: 617,197.32
Step by Step Solution
- Step 1: Write the proportion equation
809,854.98 : 1,117,578.19 = 447,253.12 : x - Step 2: Convert to fraction form
809,854.98/1,117,578.19 = 447,253.12/x - Step 3: Cross multiply
809,854.98x = 1,117,578.19 × 447,253.12 - Step 4: Simplify right side
809,854.98x = 499,840,329,037.80 - Step 5: Solve for x
x = 499,840,329,037.80/809,854.98 - Step 6: Final answer
x = 617,197.32
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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.