Finding the Fourth Proportional to 403,565.68, 557,134.37 and 312,717.70
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Solution
The fourth proportional to 403,565.68, 557,134.37 and 312,717.70 is: 431,716.04
Step by Step Solution
- Step 1: Write the proportion equation
403,565.68 : 557,134.37 = 312,717.70 : x - Step 2: Convert to fraction form
403,565.68/557,134.37 = 312,717.70/x - Step 3: Cross multiply
403,565.68x = 557,134.37 × 312,717.70 - Step 4: Simplify right side
403,565.68x = 174,225,777,213.76 - Step 5: Solve for x
x = 174,225,777,213.76/403,565.68 - Step 6: Final answer
x = 431,716.04
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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.