Finding the Fourth Proportional to 458,497.13, 686,136.69 and 368,318.25
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Solution
The fourth proportional to 458,497.13, 686,136.69 and 368,318.25 is: 551,184.84
Step by Step Solution
- Step 1: Write the proportion equation
458,497.13 : 686,136.69 = 368,318.25 : x - Step 2: Convert to fraction form
458,497.13/686,136.69 = 368,318.25/x - Step 3: Cross multiply
458,497.13x = 686,136.69 × 368,318.25 - Step 4: Simplify right side
458,497.13x = 252,716,664,921.59 - Step 5: Solve for x
x = 252,716,664,921.59/458,497.13 - Step 6: Final answer
x = 551,184.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.