Finding the Fourth Proportional to 808,601.40, 1,211,444.10 and 386,947.80
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Solution
The fourth proportional to 808,601.40, 1,211,444.10 and 386,947.80 is: 579,723.99
Step by Step Solution
- Step 1: Write the proportion equation
808,601.40 : 1,211,444.10 = 386,947.80 : x - Step 2: Convert to fraction form
808,601.40/1,211,444.10 = 386,947.80/x - Step 3: Cross multiply
808,601.40x = 1,211,444.10 × 386,947.80 - Step 4: Simplify right side
808,601.40x = 468,765,629,317.98 - Step 5: Solve for x
x = 468,765,629,317.98/808,601.40 - Step 6: Final answer
x = 579,723.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.