Finding the Fourth Proportional to 718,223.99, 991,152.09 and 395,927.01
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Solution
The fourth proportional to 718,223.99, 991,152.09 and 395,927.01 is: 546,380.92
Step by Step Solution
- Step 1: Write the proportion equation
718,223.99 : 991,152.09 = 395,927.01 : x - Step 2: Convert to fraction form
718,223.99/991,152.09 = 395,927.01/x - Step 3: Cross multiply
718,223.99x = 991,152.09 × 395,927.01 - Step 4: Simplify right side
718,223.99x = 392,423,883,448.95 - Step 5: Solve for x
x = 392,423,883,448.95/718,223.99 - Step 6: Final answer
x = 546,380.92
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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.