Finding the Fourth Proportional to 528,558.62, 729,416.24 and 286,843.28
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Solution
The fourth proportional to 528,558.62, 729,416.24 and 286,843.28 is: 395,846.62
Step by Step Solution
- Step 1: Write the proportion equation
528,558.62 : 729,416.24 = 286,843.28 : x - Step 2: Convert to fraction form
528,558.62/729,416.24 = 286,843.28/x - Step 3: Cross multiply
528,558.62x = 729,416.24 × 286,843.28 - Step 4: Simplify right side
528,558.62x = 209,228,142,761.23 - Step 5: Solve for x
x = 209,228,142,761.23/528,558.62 - Step 6: Final answer
x = 395,846.62
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1.5x scale
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.