Finding the Fourth Proportional to 611,917.70, 843,765.68 and 418,356.95
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Solution
The fourth proportional to 611,917.70, 843,765.68 and 418,356.95 is: 576,867.17
Step by Step Solution
- Step 1: Write the proportion equation
611,917.70 : 843,765.68 = 418,356.95 : x - Step 2: Convert to fraction form
611,917.70/843,765.68 = 418,356.95/x - Step 3: Cross multiply
611,917.70x = 843,765.68 × 418,356.95 - Step 4: Simplify right side
611,917.70x = 352,995,234,307.69 - Step 5: Solve for x
x = 352,995,234,307.69/611,917.70 - Step 6: Final answer
x = 576,867.17
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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.