Finding the Fourth Proportional to 755,416.24, 1,042,434.84 and 415,818.16
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Solution
The fourth proportional to 755,416.24, 1,042,434.84 and 415,818.16 is: 573,807.28
Step by Step Solution
- Step 1: Write the proportion equation
755,416.24 : 1,042,434.84 = 415,818.16 : x - Step 2: Convert to fraction form
755,416.24/1,042,434.84 = 415,818.16/x - Step 3: Cross multiply
755,416.24x = 1,042,434.84 × 415,818.16 - Step 4: Simplify right side
755,416.24x = 433,463,337,088.69 - Step 5: Solve for x
x = 433,463,337,088.69/755,416.24 - Step 6: Final answer
x = 573,807.28
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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.