Finding the Fourth Proportional to 720,292.29, 994,005.96 and 393,605.31
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Solution
The fourth proportional to 720,292.29, 994,005.96 and 393,605.31 is: 543,176.75
Step by Step Solution
- Step 1: Write the proportion equation
720,292.29 : 994,005.96 = 393,605.31 : x - Step 2: Convert to fraction form
720,292.29/994,005.96 = 393,605.31/x - Step 3: Cross multiply
720,292.29x = 994,005.96 × 393,605.31 - Step 4: Simplify right side
720,292.29x = 391,246,024,027.65 - Step 5: Solve for x
x = 391,246,024,027.65/720,292.29 - Step 6: Final answer
x = 543,176.75
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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.