Finding the Fourth Proportional to 718,649.92, 990,706.26 and 565,423.84
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Solution
The fourth proportional to 718,649.92, 990,706.26 and 565,423.84 is: 779,474.01
Step by Step Solution
- Step 1: Write the proportion equation
718,649.92 : 990,706.26 = 565,423.84 : x - Step 2: Convert to fraction form
718,649.92/990,706.26 = 565,423.84/x - Step 3: Cross multiply
718,649.92x = 990,706.26 × 565,423.84 - Step 4: Simplify right side
718,649.92x = 560,168,937,841.24 - Step 5: Solve for x
x = 560,168,937,841.24/718,649.92 - Step 6: Final answer
x = 779,474.01
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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.