Finding the Fourth Proportional to 586,602.75, 809,511.80 and 318,330.75
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Solution
The fourth proportional to 586,602.75, 809,511.80 and 318,330.75 is: 439,296.44
Step by Step Solution
- Step 1: Write the proportion equation
586,602.75 : 809,511.80 = 318,330.75 : x - Step 2: Convert to fraction form
586,602.75/809,511.80 = 318,330.75/x - Step 3: Cross multiply
586,602.75x = 809,511.80 × 318,330.75 - Step 4: Simplify right side
586,602.75x = 257,692,498,427.85 - Step 5: Solve for x
x = 257,692,498,427.85/586,602.75 - Step 6: Final answer
x = 439,296.44
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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.