Finding the Fourth Proportional to 478,266.25, 659,958.58 and 294,475.63
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Solution
The fourth proportional to 478,266.25, 659,958.58 and 294,475.63 is: 406,346.29
Step by Step Solution
- Step 1: Write the proportion equation
478,266.25 : 659,958.58 = 294,475.63 : x - Step 2: Convert to fraction form
478,266.25/659,958.58 = 294,475.63/x - Step 3: Cross multiply
478,266.25x = 659,958.58 × 294,475.63 - Step 4: Simplify right side
478,266.25x = 194,341,713,847.23 - Step 5: Solve for x
x = 194,341,713,847.23/478,266.25 - Step 6: Final answer
x = 406,346.29
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1.5x scale
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.