Finding the Fourth Proportional to 819,113.99, 1,229,224.61 and 286,639.63
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Solution
The fourth proportional to 819,113.99, 1,229,224.61 and 286,639.63 is: 430,153.18
Step by Step Solution
- Step 1: Write the proportion equation
819,113.99 : 1,229,224.61 = 286,639.63 : x - Step 2: Convert to fraction form
819,113.99/1,229,224.61 = 286,639.63/x - Step 3: Cross multiply
819,113.99x = 1,229,224.61 × 286,639.63 - Step 4: Simplify right side
819,113.99x = 352,344,485,040.83 - Step 5: Solve for x
x = 352,344,485,040.83/819,113.99 - Step 6: Final answer
x = 430,153.18
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1.5x scale
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.