Finding the Fourth Proportional to 819,108.24, 1,229,215.98 and 286,633.98
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Solution
The fourth proportional to 819,108.24, 1,229,215.98 and 286,633.98 is: 430,144.70
Step by Step Solution
- Step 1: Write the proportion equation
819,108.24 : 1,229,215.98 = 286,633.98 : x - Step 2: Convert to fraction form
819,108.24/1,229,215.98 = 286,633.98/x - Step 3: Cross multiply
819,108.24x = 1,229,215.98 × 286,633.98 - Step 4: Simplify right side
819,108.24x = 352,335,068,627.00 - Step 5: Solve for x
x = 352,335,068,627.00/819,108.24 - Step 6: Final answer
x = 430,144.70
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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.