Finding the Fourth Proportional to 660,867.68, 991,744.43 and 424,376.44
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Solution
The fourth proportional to 660,867.68, 991,744.43 and 424,376.44 is: 636,849.07
Step by Step Solution
- Step 1: Write the proportion equation
660,867.68 : 991,744.43 = 424,376.44 : x - Step 2: Convert to fraction form
660,867.68/991,744.43 = 424,376.44/x - Step 3: Cross multiply
660,867.68x = 991,744.43 × 424,376.44 - Step 4: Simplify right side
660,867.68x = 420,872,965,991.99 - Step 5: Solve for x
x = 420,872,965,991.99/660,867.68 - Step 6: Final answer
x = 636,849.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.