Finding the Fourth Proportional to 722,132.28, 996,558.12 and 395,459.06
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Solution
The fourth proportional to 722,132.28, 996,558.12 and 395,459.06 is: 545,742.02
Step by Step Solution
- Step 1: Write the proportion equation
722,132.28 : 996,558.12 = 395,459.06 : x - Step 2: Convert to fraction form
722,132.28/996,558.12 = 395,459.06/x - Step 3: Cross multiply
722,132.28x = 996,558.12 × 395,459.06 - Step 4: Simplify right side
722,132.28x = 394,097,932,387.78 - Step 5: Solve for x
x = 394,097,932,387.78/722,132.28 - Step 6: Final answer
x = 545,742.02
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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.