Finding the Fourth Proportional to 812,448.02, 1,217,876.58 and 339,268.70
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Solution
The fourth proportional to 812,448.02, 1,217,876.58 and 339,268.70 is: 508,570.88
Step by Step Solution
- Step 1: Write the proportion equation
812,448.02 : 1,217,876.58 = 339,268.70 : x - Step 2: Convert to fraction form
812,448.02/1,217,876.58 = 339,268.70/x - Step 3: Cross multiply
812,448.02x = 1,217,876.58 × 339,268.70 - Step 4: Simplify right side
812,448.02x = 413,187,404,057.05 - Step 5: Solve for x
x = 413,187,404,057.05/812,448.02 - Step 6: Final answer
x = 508,570.88
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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.