Finding the Fourth Proportional to 586,609.19, 809,520.68 and 318,337.19
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Solution
The fourth proportional to 586,609.19, 809,520.68 and 318,337.19 is: 439,305.32
Step by Step Solution
- Step 1: Write the proportion equation
586,609.19 : 809,520.68 = 318,337.19 : x - Step 2: Convert to fraction form
586,609.19/809,520.68 = 318,337.19/x - Step 3: Cross multiply
586,609.19x = 809,520.68 × 318,337.19 - Step 4: Simplify right side
586,609.19x = 257,700,538,518.09 - Step 5: Solve for x
x = 257,700,538,518.09/586,609.19 - Step 6: Final answer
x = 439,305.32
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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.