Finding the Fourth Proportional to 586,246.38, 809,021.49 and 317,974.38
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Solution
The fourth proportional to 586,246.38, 809,021.49 and 317,974.38 is: 438,805.45
Step by Step Solution
- Step 1: Write the proportion equation
586,246.38 : 809,021.49 = 317,974.38 : x - Step 2: Convert to fraction form
586,246.38/809,021.49 = 317,974.38/x - Step 3: Cross multiply
586,246.38x = 809,021.49 × 317,974.38 - Step 4: Simplify right side
586,246.38x = 257,248,106,689.43 - Step 5: Solve for x
x = 257,248,106,689.43/586,246.38 - Step 6: Final answer
x = 438,805.45
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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.