Finding the Fourth Proportional to 639,674.30, 954,349.17 and 616,415.42
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Solution
The fourth proportional to 639,674.30, 954,349.17 and 616,415.42 is: 919,648.55
Step by Step Solution
- Step 1: Write the proportion equation
639,674.30 : 954,349.17 = 616,415.42 : x - Step 2: Convert to fraction form
639,674.30/954,349.17 = 616,415.42/x - Step 3: Cross multiply
639,674.30x = 954,349.17 × 616,415.42 - Step 4: Simplify right side
639,674.30x = 588,275,541,370.12 - Step 5: Solve for x
x = 588,275,541,370.12/639,674.30 - Step 6: Final answer
x = 919,648.55
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.