Finding the Fourth Proportional to 354,617.40, 531,926.10 and 291,631.80
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Solution
The fourth proportional to 354,617.40, 531,926.10 and 291,631.80 is: 437,447.70
Step by Step Solution
- Step 1: Write the proportion equation
354,617.40 : 531,926.10 = 291,631.80 : x - Step 2: Convert to fraction form
354,617.40/531,926.10 = 291,631.80/x - Step 3: Cross multiply
354,617.40x = 531,926.10 × 291,631.80 - Step 4: Simplify right side
354,617.40x = 155,126,566,009.98 - Step 5: Solve for x
x = 155,126,566,009.98/354,617.40 - Step 6: Final answer
x = 437,447.70
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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.