Finding the Fourth Proportional to 586,644.19, 809,569.01 and 318,372.19
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Solution
The fourth proportional to 586,644.19, 809,569.01 and 318,372.19 is: 439,353.64
Step by Step Solution
- Step 1: Write the proportion equation
586,644.19 : 809,569.01 = 318,372.19 : x - Step 2: Convert to fraction form
586,644.19/809,569.01 = 318,372.19/x - Step 3: Cross multiply
586,644.19x = 809,569.01 × 318,372.19 - Step 4: Simplify right side
586,644.19x = 257,744,257,441.84 - Step 5: Solve for x
x = 257,744,257,441.84/586,644.19 - Step 6: Final answer
x = 439,353.64
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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.