Finding the Fourth Proportional to 811,563.42, 1,216,553.94 and 338,384.10
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Solution
The fourth proportional to 811,563.42, 1,216,553.94 and 338,384.10 is: 507,246.26
Step by Step Solution
- Step 1: Write the proportion equation
811,563.42 : 1,216,553.94 = 338,384.10 : x - Step 2: Convert to fraction form
811,563.42/1,216,553.94 = 338,384.10/x - Step 3: Cross multiply
811,563.42x = 1,216,553.94 × 338,384.10 - Step 4: Simplify right side
811,563.42x = 411,662,510,088.35 - Step 5: Solve for x
x = 411,662,510,088.35/811,563.42 - Step 6: Final answer
x = 507,246.26
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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.