Finding the Fourth Proportional to 774,986.68, 1,069,448.08 and 430,821.80
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Solution
The fourth proportional to 774,986.68, 1,069,448.08 and 430,821.80 is: 594,515.44
Step by Step Solution
- Step 1: Write the proportion equation
774,986.68 : 1,069,448.08 = 430,821.80 : x - Step 2: Convert to fraction form
774,986.68/1,069,448.08 = 430,821.80/x - Step 3: Cross multiply
774,986.68x = 1,069,448.08 × 430,821.80 - Step 4: Simplify right side
774,986.68x = 460,741,546,832.14 - Step 5: Solve for x
x = 460,741,546,832.14/774,986.68 - Step 6: Final answer
x = 594,515.44
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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.