Finding the Fourth Proportional to 397,406.12, 549,864.56 and 346,524.95
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Solution
The fourth proportional to 397,406.12, 549,864.56 and 346,524.95 is: 479,463.65
Step by Step Solution
- Step 1: Write the proportion equation
397,406.12 : 549,864.56 = 346,524.95 : x - Step 2: Convert to fraction form
397,406.12/549,864.56 = 346,524.95/x - Step 3: Cross multiply
397,406.12x = 549,864.56 × 346,524.95 - Step 4: Simplify right side
397,406.12x = 190,541,787,428.15 - Step 5: Solve for x
x = 190,541,787,428.15/397,406.12 - Step 6: Final answer
x = 479,463.65
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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.