Finding the Fourth Proportional to 487,614.96, 672,637.74 and 283,642.92
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Solution
The fourth proportional to 487,614.96, 672,637.74 and 283,642.92 is: 391,269.65
Step by Step Solution
- Step 1: Write the proportion equation
487,614.96 : 672,637.74 = 283,642.92 : x - Step 2: Convert to fraction form
487,614.96/672,637.74 = 283,642.92/x - Step 3: Cross multiply
487,614.96x = 672,637.74 × 283,642.92 - Step 4: Simplify right side
487,614.96x = 190,788,932,675.80 - Step 5: Solve for x
x = 190,788,932,675.80/487,614.96 - Step 6: Final answer
x = 391,269.65
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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.