Finding the Fourth Proportional to 633,963.60, 874,959.45 and 392,324.07
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Solution
The fourth proportional to 633,963.60, 874,959.45 and 392,324.07 is: 541,462.72
Step by Step Solution
- Step 1: Write the proportion equation
633,963.60 : 874,959.45 = 392,324.07 : x - Step 2: Convert to fraction form
633,963.60/874,959.45 = 392,324.07/x - Step 3: Cross multiply
633,963.60x = 874,959.45 × 392,324.07 - Step 4: Simplify right side
633,963.60x = 343,267,652,508.96 - Step 5: Solve for x
x = 343,267,652,508.96/633,963.60 - Step 6: Final answer
x = 541,462.72
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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.