Finding the Fourth Proportional to 816,985.36, 1,126,648.20 and 545,064.31
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Solution
The fourth proportional to 816,985.36, 1,126,648.20 and 545,064.31 is: 751,660.62
Step by Step Solution
- Step 1: Write the proportion equation
816,985.36 : 1,126,648.20 = 545,064.31 : x - Step 2: Convert to fraction form
816,985.36/1,126,648.20 = 545,064.31/x - Step 3: Cross multiply
816,985.36x = 1,126,648.20 × 545,064.31 - Step 4: Simplify right side
816,985.36x = 614,095,723,745.74 - Step 5: Solve for x
x = 614,095,723,745.74/816,985.36 - Step 6: Final answer
x = 751,660.62
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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.