Finding the Fourth Proportional to 979,921.68, 1,352,329.84 and 544,372.01
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Solution
The fourth proportional to 979,921.68, 1,352,329.84 and 544,372.01 is: 751,254.43
Step by Step Solution
- Step 1: Write the proportion equation
979,921.68 : 1,352,329.84 = 544,372.01 : x - Step 2: Convert to fraction form
979,921.68/1,352,329.84 = 544,372.01/x - Step 3: Cross multiply
979,921.68x = 1,352,329.84 × 544,372.01 - Step 4: Simplify right side
979,921.68x = 736,170,505,061.20 - Step 5: Solve for x
x = 736,170,505,061.20/979,921.68 - Step 6: Final answer
x = 751,254.43
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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.