Finding the Fourth Proportional to 528,651.58, 729,519.62 and 286,928.94
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Solution
The fourth proportional to 528,651.58, 729,519.62 and 286,928.94 is: 395,951.32
Step by Step Solution
- Step 1: Write the proportion equation
528,651.58 : 729,519.62 = 286,928.94 : x - Step 2: Convert to fraction form
528,651.58/729,519.62 = 286,928.94/x - Step 3: Cross multiply
528,651.58x = 729,519.62 × 286,928.94 - Step 4: Simplify right side
528,651.58x = 209,320,291,275.80 - Step 5: Solve for x
x = 209,320,291,275.80/528,651.58 - Step 6: Final answer
x = 395,951.32
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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.