Finding the Fourth Proportional to 528,659.11, 729,530.02 and 286,936.53
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Solution
The fourth proportional to 528,659.11, 729,530.02 and 286,936.53 is: 395,961.80
Step by Step Solution
- Step 1: Write the proportion equation
528,659.11 : 729,530.02 = 286,936.53 : x - Step 2: Convert to fraction form
528,659.11/729,530.02 = 286,936.53/x - Step 3: Cross multiply
528,659.11x = 729,530.02 × 286,936.53 - Step 4: Simplify right side
528,659.11x = 209,328,812,469.63 - Step 5: Solve for x
x = 209,328,812,469.63/528,659.11 - Step 6: Final answer
x = 395,961.80
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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.