Finding the Fourth Proportional to 646,408.73, 969,610.44 and 197,128.28
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Solution
The fourth proportional to 646,408.73, 969,610.44 and 197,128.28 is: 295,691.61
Step by Step Solution
- Step 1: Write the proportion equation
646,408.73 : 969,610.44 = 197,128.28 : x - Step 2: Convert to fraction form
646,408.73/969,610.44 = 197,128.28/x - Step 3: Cross multiply
646,408.73x = 969,610.44 × 197,128.28 - Step 4: Simplify right side
646,408.73x = 191,137,638,307.24 - Step 5: Solve for x
x = 191,137,638,307.24/646,408.73 - Step 6: Final answer
x = 295,691.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.