Finding the Fourth Proportional to 660,796.26, 911,899.64 and 358,990.26
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Solution
The fourth proportional to 660,796.26, 911,899.64 and 358,990.26 is: 495,406.99
Step by Step Solution
- Step 1: Write the proportion equation
660,796.26 : 911,899.64 = 358,990.26 : x - Step 2: Convert to fraction form
660,796.26/911,899.64 = 358,990.26/x - Step 3: Cross multiply
660,796.26x = 911,899.64 × 358,990.26 - Step 4: Simplify right side
660,796.26x = 327,363,088,857.51 - Step 5: Solve for x
x = 327,363,088,857.51/660,796.26 - Step 6: Final answer
x = 495,406.99
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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.