Finding the Fourth Proportional to 461,321.80, 691,982.70 and 368,009.80
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Solution
The fourth proportional to 461,321.80, 691,982.70 and 368,009.80 is: 552,014.70
Step by Step Solution
- Step 1: Write the proportion equation
461,321.80 : 691,982.70 = 368,009.80 : x - Step 2: Convert to fraction form
461,321.80/691,982.70 = 368,009.80/x - Step 3: Cross multiply
461,321.80x = 691,982.70 × 368,009.80 - Step 4: Simplify right side
461,321.80x = 254,656,415,030.46 - Step 5: Solve for x
x = 254,656,415,030.46/461,321.80 - Step 6: Final answer
x = 552,014.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.