Finding the Fourth Proportional to 753,239.86, 1,039,789.05 and 508,556.09
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Solution
The fourth proportional to 753,239.86, 1,039,789.05 and 508,556.09 is: 702,022.13
Step by Step Solution
- Step 1: Write the proportion equation
753,239.86 : 1,039,789.05 = 508,556.09 : x - Step 2: Convert to fraction form
753,239.86/1,039,789.05 = 508,556.09/x - Step 3: Cross multiply
753,239.86x = 1,039,789.05 × 508,556.09 - Step 4: Simplify right side
753,239.86x = 528,791,053,692.82 - Step 5: Solve for x
x = 528,791,053,692.82/753,239.86 - Step 6: Final answer
x = 702,022.13
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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.