Finding the Fourth Proportional to 992,122.08, 1,369,138.08 and 539,422.72
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Solution
The fourth proportional to 992,122.08, 1,369,138.08 and 539,422.72 is: 744,408.58
Step by Step Solution
- Step 1: Write the proportion equation
992,122.08 : 1,369,138.08 = 539,422.72 : x - Step 2: Convert to fraction form
992,122.08/1,369,138.08 = 539,422.72/x - Step 3: Cross multiply
992,122.08x = 1,369,138.08 × 539,422.72 - Step 4: Simplify right side
992,122.08x = 738,544,187,169.18 - Step 5: Solve for x
x = 738,544,187,169.18/992,122.08 - Step 6: Final answer
x = 744,408.58
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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.