Finding the Fourth Proportional to 575,129.40, 862,694.10 and 154,447.80
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Solution
The fourth proportional to 575,129.40, 862,694.10 and 154,447.80 is: 231,671.70
Step by Step Solution
- Step 1: Write the proportion equation
575,129.40 : 862,694.10 = 154,447.80 : x - Step 2: Convert to fraction form
575,129.40/862,694.10 = 154,447.80/x - Step 3: Cross multiply
575,129.40x = 862,694.10 × 154,447.80 - Step 4: Simplify right side
575,129.40x = 133,241,205,817.98 - Step 5: Solve for x
x = 133,241,205,817.98/575,129.40 - Step 6: Final answer
x = 231,671.70
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1.5x scale
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.