Finding the Fourth Proportional to 855,744.96, 1,180,637.88 and 493,157.40
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Solution
The fourth proportional to 855,744.96, 1,180,637.88 and 493,157.40 is: 680,389.99
Step by Step Solution
- Step 1: Write the proportion equation
855,744.96 : 1,180,637.88 = 493,157.40 : x - Step 2: Convert to fraction form
855,744.96/1,180,637.88 = 493,157.40/x - Step 3: Cross multiply
855,744.96x = 1,180,637.88 × 493,157.40 - Step 4: Simplify right side
855,744.96x = 582,240,307,242.31 - Step 5: Solve for x
x = 582,240,307,242.31/855,744.96 - Step 6: Final answer
x = 680,389.99
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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.