Finding the Fourth Proportional to 528,643.26, 729,528.50 and 286,925.92
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Solution
The fourth proportional to 528,643.26, 729,528.50 and 286,925.92 is: 395,958.20
Step by Step Solution
- Step 1: Write the proportion equation
528,643.26 : 729,528.50 = 286,925.92 : x - Step 2: Convert to fraction form
528,643.26/729,528.50 = 286,925.92/x - Step 3: Cross multiply
528,643.26x = 729,528.50 × 286,925.92 - Step 4: Simplify right side
528,643.26x = 209,320,636,167.03 - Step 5: Solve for x
x = 209,320,636,167.03/528,643.26 - Step 6: Final answer
x = 395,958.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.