Finding the Fourth Proportional to 747,828.54, 1,121,890.68 and 274,518
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Solution
The fourth proportional to 747,828.54, 1,121,890.68 and 274,518 is: 411,831.28
Step by Step Solution
- Step 1: Write the proportion equation
747,828.54 : 1,121,890.68 = 274,518 : x - Step 2: Convert to fraction form
747,828.54/1,121,890.68 = 274,518/x - Step 3: Cross multiply
747,828.54x = 1,121,890.68 × 274,518 - Step 4: Simplify right side
747,828.54x = 307,979,185,692.24 - Step 5: Solve for x
x = 307,979,185,692.24/747,828.54 - Step 6: Final answer
x = 411,831.28
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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.