Finding the Fourth Proportional to 391,710.17, 587,579.17 and 125,436.09
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Solution
The fourth proportional to 391,710.17, 587,579.17 and 125,436.09 is: 188,158.59
Step by Step Solution
- Step 1: Write the proportion equation
391,710.17 : 587,579.17 = 125,436.09 : x - Step 2: Convert to fraction form
391,710.17/587,579.17 = 125,436.09/x - Step 3: Cross multiply
391,710.17x = 587,579.17 × 125,436.09 - Step 4: Simplify right side
391,710.17x = 73,703,631,025.94 - Step 5: Solve for x
x = 73,703,631,025.94/391,710.17 - Step 6: Final answer
x = 188,158.59
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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.