Finding the Fourth Proportional to 513,576.60, 708,703.56 and 284,128.44
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Solution
The fourth proportional to 513,576.60, 708,703.56 and 284,128.44 is: 392,079.46
Step by Step Solution
- Step 1: Write the proportion equation
513,576.60 : 708,703.56 = 284,128.44 : x - Step 2: Convert to fraction form
513,576.60/708,703.56 = 284,128.44/x - Step 3: Cross multiply
513,576.60x = 708,703.56 × 284,128.44 - Step 4: Simplify right side
513,576.60x = 201,362,836,925.25 - Step 5: Solve for x
x = 201,362,836,925.25/513,576.60 - Step 6: Final answer
x = 392,079.46
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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.