Finding the Fourth Proportional to 1,125,319.98, 1,688,128.20 and 366,895.11
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Solution
The fourth proportional to 1,125,319.98, 1,688,128.20 and 366,895.11 is: 550,390.99
Step by Step Solution
- Step 1: Write the proportion equation
1,125,319.98 : 1,688,128.20 = 366,895.11 : x - Step 2: Convert to fraction form
1,125,319.98/1,688,128.20 = 366,895.11/x - Step 3: Cross multiply
1,125,319.98x = 1,688,128.20 × 366,895.11 - Step 4: Simplify right side
1,125,319.98x = 619,365,981,633.10 - Step 5: Solve for x
x = 619,365,981,633.10/1,125,319.98 - Step 6: Final answer
x = 550,390.99
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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.