Finding the Fourth Proportional to 826,484.69, 1,239,245.33 and 320,454.51
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Solution
The fourth proportional to 826,484.69, 1,239,245.33 and 320,454.51 is: 480,494.99
Step by Step Solution
- Step 1: Write the proportion equation
826,484.69 : 1,239,245.33 = 320,454.51 : x - Step 2: Convert to fraction form
826,484.69/1,239,245.33 = 320,454.51/x - Step 3: Cross multiply
826,484.69x = 1,239,245.33 × 320,454.51 - Step 4: Simplify right side
826,484.69x = 397,121,753,392.67 - Step 5: Solve for x
x = 397,121,753,392.67/826,484.69 - Step 6: Final answer
x = 480,494.99
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1.5x scale
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.