Finding the Fourth Proportional to 586,588.19, 809,491.70 and 318,316.19
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Solution
The fourth proportional to 586,588.19, 809,491.70 and 318,316.19 is: 439,276.34
Step by Step Solution
- Step 1: Write the proportion equation
586,588.19 : 809,491.70 = 318,316.19 : x - Step 2: Convert to fraction form
586,588.19/809,491.70 = 318,316.19/x - Step 3: Cross multiply
586,588.19x = 809,491.70 × 318,316.19 - Step 4: Simplify right side
586,588.19x = 257,674,313,780.62 - Step 5: Solve for x
x = 257,674,313,780.62/586,588.19 - Step 6: Final answer
x = 439,276.34
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Double scale
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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.