Finding the Fourth Proportional to 639,414.99, 882,392.76 and 352,935.15
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Solution
The fourth proportional to 639,414.99, 882,392.76 and 352,935.15 is: 487,050.55
Step by Step Solution
- Step 1: Write the proportion equation
639,414.99 : 882,392.76 = 352,935.15 : x - Step 2: Convert to fraction form
639,414.99/882,392.76 = 352,935.15/x - Step 3: Cross multiply
639,414.99x = 882,392.76 × 352,935.15 - Step 4: Simplify right side
639,414.99x = 311,427,421,109.51 - Step 5: Solve for x
x = 311,427,421,109.51/639,414.99 - Step 6: Final answer
x = 487,050.55
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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.