Finding the Fourth Proportional to 815,877.98, 1,124,742.35 and 573,408.02
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Solution
The fourth proportional to 815,877.98, 1,124,742.35 and 573,408.02 is: 790,481.29
Step by Step Solution
- Step 1: Write the proportion equation
815,877.98 : 1,124,742.35 = 573,408.02 : x - Step 2: Convert to fraction form
815,877.98/1,124,742.35 = 573,408.02/x - Step 3: Cross multiply
815,877.98x = 1,124,742.35 × 573,408.02 - Step 4: Simplify right side
815,877.98x = 644,936,275,432.90 - Step 5: Solve for x
x = 644,936,275,432.90/815,877.98 - Step 6: Final answer
x = 790,481.29
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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.