Finding the Fourth Proportional to 1,125,389.19, 1,688,137.55 and 367,229.19
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Solution
The fourth proportional to 1,125,389.19, 1,688,137.55 and 367,229.19 is: 550,861.33
Step by Step Solution
- Step 1: Write the proportion equation
1,125,389.19 : 1,688,137.55 = 367,229.19 : x - Step 2: Convert to fraction form
1,125,389.19/1,688,137.55 = 367,229.19/x - Step 3: Cross multiply
1,125,389.19x = 1,688,137.55 × 367,229.19 - Step 4: Simplify right side
1,125,389.19x = 619,933,393,032.23 - Step 5: Solve for x
x = 619,933,393,032.23/1,125,389.19 - Step 6: Final answer
x = 550,861.33
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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.