Finding the Fourth Proportional to 916,128.08, 1,374,199.41 and 376,245.26
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Solution
The fourth proportional to 916,128.08, 1,374,199.41 and 376,245.26 is: 564,370.88
Step by Step Solution
- Step 1: Write the proportion equation
916,128.08 : 1,374,199.41 = 376,245.26 : x - Step 2: Convert to fraction form
916,128.08/1,374,199.41 = 376,245.26/x - Step 3: Cross multiply
916,128.08x = 1,374,199.41 × 376,245.26 - Step 4: Simplify right side
916,128.08x = 517,036,014,307.30 - Step 5: Solve for x
x = 517,036,014,307.30/916,128.08 - Step 6: Final answer
x = 564,370.88
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1.5x scale
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.