Finding the Fourth Proportional to 639,474.63, 882,475.16 and 352,994.91
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Solution
The fourth proportional to 639,474.63, 882,475.16 and 352,994.91 is: 487,133.07
Step by Step Solution
- Step 1: Write the proportion equation
639,474.63 : 882,475.16 = 352,994.91 : x - Step 2: Convert to fraction form
639,474.63/882,475.16 = 352,994.91/x - Step 3: Cross multiply
639,474.63x = 882,475.16 × 352,994.91 - Step 4: Simplify right side
639,474.63x = 311,509,237,916.46 - Step 5: Solve for x
x = 311,509,237,916.46/639,474.63 - Step 6: Final answer
x = 487,133.07
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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.