Finding the Fourth Proportional to 405,924.29, 560,451.17 and 253,023.65
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Solution
The fourth proportional to 405,924.29, 560,451.17 and 253,023.65 is: 349,344.45
Step by Step Solution
- Step 1: Write the proportion equation
405,924.29 : 560,451.17 = 253,023.65 : x - Step 2: Convert to fraction form
405,924.29/560,451.17 = 253,023.65/x - Step 3: Cross multiply
405,924.29x = 560,451.17 × 253,023.65 - Step 4: Simplify right side
405,924.29x = 141,807,399,415.05 - Step 5: Solve for x
x = 141,807,399,415.05/405,924.29 - Step 6: Final answer
x = 349,344.45
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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.