Finding the Fourth Proportional to 747,857.12, 1,032,042.41 and 408,325.37
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Solution
The fourth proportional to 747,857.12, 1,032,042.41 and 408,325.37 is: 563,488.78
Step by Step Solution
- Step 1: Write the proportion equation
747,857.12 : 1,032,042.41 = 408,325.37 : x - Step 2: Convert to fraction form
747,857.12/1,032,042.41 = 408,325.37/x - Step 3: Cross multiply
747,857.12x = 1,032,042.41 × 408,325.37 - Step 4: Simplify right side
747,857.12x = 421,409,098,918.94 - Step 5: Solve for x
x = 421,409,098,918.94/747,857.12 - Step 6: Final answer
x = 563,488.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.