Finding the Fourth Proportional to 639,246.63, 882,492.01 and 466,971.18
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Solution
The fourth proportional to 639,246.63, 882,492.01 and 466,971.18 is: 644,662.50
Step by Step Solution
- Step 1: Write the proportion equation
639,246.63 : 882,492.01 = 466,971.18 : x - Step 2: Convert to fraction form
639,246.63/882,492.01 = 466,971.18/x - Step 3: Cross multiply
639,246.63x = 882,492.01 × 466,971.18 - Step 4: Simplify right side
639,246.63x = 412,098,333,400.21 - Step 5: Solve for x
x = 412,098,333,400.21/639,246.63 - Step 6: Final answer
x = 644,662.50
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1.5x scale
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.