Finding the Fourth Proportional to 769,918.60, 1,062,468.18 and 430,418.44
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Solution
The fourth proportional to 769,918.60, 1,062,468.18 and 430,418.44 is: 593,966.55
Step by Step Solution
- Step 1: Write the proportion equation
769,918.60 : 1,062,468.18 = 430,418.44 : x - Step 2: Convert to fraction form
769,918.60/1,062,468.18 = 430,418.44/x - Step 3: Cross multiply
769,918.60x = 1,062,468.18 × 430,418.44 - Step 4: Simplify right side
769,918.60x = 457,305,896,585.24 - Step 5: Solve for x
x = 457,305,896,585.24/769,918.60 - Step 6: Final answer
x = 593,966.55
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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.