Finding the Fourth Proportional to 747,440.06, 1,121,307.63 and 274,129.52
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Solution
The fourth proportional to 747,440.06, 1,121,307.63 and 274,129.52 is: 411,248.39
Step by Step Solution
- Step 1: Write the proportion equation
747,440.06 : 1,121,307.63 = 274,129.52 : x - Step 2: Convert to fraction form
747,440.06/1,121,307.63 = 274,129.52/x - Step 3: Cross multiply
747,440.06x = 1,121,307.63 × 274,129.52 - Step 4: Simplify right side
747,440.06x = 307,383,516,092.38 - Step 5: Solve for x
x = 307,383,516,092.38/747,440.06 - Step 6: Final answer
x = 411,248.39
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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.