Finding the Fourth Proportional to 660,585.90, 911,578.08 and 374,108.07
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Solution
The fourth proportional to 660,585.90, 911,578.08 and 374,108.07 is: 516,251.89
Step by Step Solution
- Step 1: Write the proportion equation
660,585.90 : 911,578.08 = 374,108.07 : x - Step 2: Convert to fraction form
660,585.90/911,578.08 = 374,108.07/x - Step 3: Cross multiply
660,585.90x = 911,578.08 × 374,108.07 - Step 4: Simplify right side
660,585.90x = 341,028,716,163.11 - Step 5: Solve for x
x = 341,028,716,163.11/660,585.90 - Step 6: Final answer
x = 516,251.89
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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.