Finding the Fourth Proportional to 639,545.69, 882,549.92 and 353,059.63
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Solution
The fourth proportional to 639,545.69, 882,549.92 and 353,059.63 is: 487,209.52
Step by Step Solution
- Step 1: Write the proportion equation
639,545.69 : 882,549.92 = 353,059.63 : x - Step 2: Convert to fraction form
639,545.69/882,549.92 = 353,059.63/x - Step 3: Cross multiply
639,545.69x = 882,549.92 × 353,059.63 - Step 4: Simplify right side
639,545.69x = 311,592,746,888.00 - Step 5: Solve for x
x = 311,592,746,888.00/639,545.69 - Step 6: Final answer
x = 487,209.52
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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.