Finding the Fourth Proportional to 639,923.56, 883,202.34 and 371,807.08
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Solution
The fourth proportional to 639,923.56, 883,202.34 and 371,807.08 is: 513,156.42
Step by Step Solution
- Step 1: Write the proportion equation
639,923.56 : 883,202.34 = 371,807.08 : x - Step 2: Convert to fraction form
639,923.56/883,202.34 = 371,807.08/x - Step 3: Cross multiply
639,923.56x = 883,202.34 × 371,807.08 - Step 4: Simplify right side
639,923.56x = 328,380,883,084.57 - Step 5: Solve for x
x = 328,380,883,084.57/639,923.56 - Step 6: Final answer
x = 513,156.42
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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.