Finding the Fourth Proportional to 913,135.03, 1,260,163.51 and 505,230.26
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Solution
The fourth proportional to 913,135.03, 1,260,163.51 and 505,230.26 is: 697,238.32
Step by Step Solution
- Step 1: Write the proportion equation
913,135.03 : 1,260,163.51 = 505,230.26 : x - Step 2: Convert to fraction form
913,135.03/1,260,163.51 = 505,230.26/x - Step 3: Cross multiply
913,135.03x = 1,260,163.51 × 505,230.26 - Step 4: Simplify right side
913,135.03x = 636,672,730,235.92 - Step 5: Solve for x
x = 636,672,730,235.92/913,135.03 - Step 6: Final answer
x = 697,238.32
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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.