Finding the Fourth Proportional to 397,643.40, 596,465.10 and 354,097.80
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Solution
The fourth proportional to 397,643.40, 596,465.10 and 354,097.80 is: 531,146.70
Step by Step Solution
- Step 1: Write the proportion equation
397,643.40 : 596,465.10 = 354,097.80 : x - Step 2: Convert to fraction form
397,643.40/596,465.10 = 354,097.80/x - Step 3: Cross multiply
397,643.40x = 596,465.10 × 354,097.80 - Step 4: Simplify right side
397,643.40x = 211,206,979,686.78 - Step 5: Solve for x
x = 211,206,979,686.78/397,643.40 - Step 6: Final answer
x = 531,146.70
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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.