Finding the Fourth Proportional to 639,253.71, 957,717.68 and 372,204.63
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Solution
The fourth proportional to 639,253.71, 957,717.68 and 372,204.63 is: 557,629.85
Step by Step Solution
- Step 1: Write the proportion equation
639,253.71 : 957,717.68 = 372,204.63 : x - Step 2: Convert to fraction form
639,253.71/957,717.68 = 372,204.63/x - Step 3: Cross multiply
639,253.71x = 957,717.68 × 372,204.63 - Step 4: Simplify right side
639,253.71x = 356,466,952,867.84 - Step 5: Solve for x
x = 356,466,952,867.84/639,253.71 - Step 6: Final answer
x = 557,629.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.