Finding the Fourth Proportional to 513,653.78, 708,828.56 and 284,205.08
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Solution
The fourth proportional to 513,653.78, 708,828.56 and 284,205.08 is: 392,195.45
Step by Step Solution
- Step 1: Write the proportion equation
513,653.78 : 708,828.56 = 284,205.08 : x - Step 2: Convert to fraction form
513,653.78/708,828.56 = 284,205.08/x - Step 3: Cross multiply
513,653.78x = 708,828.56 × 284,205.08 - Step 4: Simplify right side
513,653.78x = 201,452,672,635.92 - Step 5: Solve for x
x = 201,452,672,635.92/513,653.78 - Step 6: Final answer
x = 392,195.45
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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.