Finding the Fourth Proportional to 513,864.99, 709,115.60 and 284,422.73
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Solution
The fourth proportional to 513,864.99, 709,115.60 and 284,422.73 is: 392,493.35
Step by Step Solution
- Step 1: Write the proportion equation
513,864.99 : 709,115.60 = 284,422.73 : x - Step 2: Convert to fraction form
513,864.99/709,115.60 = 284,422.73/x - Step 3: Cross multiply
513,864.99x = 709,115.60 × 284,422.73 - Step 4: Simplify right side
513,864.99x = 201,688,589,869.90 - Step 5: Solve for x
x = 201,688,589,869.90/513,864.99 - Step 6: Final answer
x = 392,493.35
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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.