Finding the Fourth Proportional to 809,425.14, 1,116,977.36 and 446,841.20
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Solution
The fourth proportional to 809,425.14, 1,116,977.36 and 446,841.20 is: 616,624.65
Step by Step Solution
- Step 1: Write the proportion equation
809,425.14 : 1,116,977.36 = 446,841.20 : x - Step 2: Convert to fraction form
809,425.14/1,116,977.36 = 446,841.20/x - Step 3: Cross multiply
809,425.14x = 1,116,977.36 × 446,841.20 - Step 4: Simplify right side
809,425.14x = 499,111,496,096.14 - Step 5: Solve for x
x = 499,111,496,096.14/809,425.14 - Step 6: Final answer
x = 616,624.65
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1.5x scale
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.