Finding the Fourth Proportional to 979,980.80, 1,352,519.98 and 598,229.01
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Solution
The fourth proportional to 979,980.80, 1,352,519.98 and 598,229.01 is: 825,645.45
Step by Step Solution
- Step 1: Write the proportion equation
979,980.80 : 1,352,519.98 = 598,229.01 : x - Step 2: Convert to fraction form
979,980.80/1,352,519.98 = 598,229.01/x - Step 3: Cross multiply
979,980.80x = 1,352,519.98 × 598,229.01 - Step 4: Simplify right side
979,980.80x = 809,116,687,145.05 - Step 5: Solve for x
x = 809,116,687,145.05/979,980.80 - Step 6: Final answer
x = 825,645.45
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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.