Finding the Fourth Proportional to 630,243.12, 945,784.80 and 326,916.84
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Solution
The fourth proportional to 630,243.12, 945,784.80 and 326,916.84 is: 490,593.18
Step by Step Solution
- Step 1: Write the proportion equation
630,243.12 : 945,784.80 = 326,916.84 : x - Step 2: Convert to fraction form
630,243.12/945,784.80 = 326,916.84/x - Step 3: Cross multiply
630,243.12x = 945,784.80 × 326,916.84 - Step 4: Simplify right side
630,243.12x = 309,192,978,136.03 - Step 5: Solve for x
x = 309,192,978,136.03/630,243.12 - Step 6: Final answer
x = 490,593.18
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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.