Finding the Fourth Proportional to 1,109,865.12, 1,664,798.49 and 268,417.68
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Solution
The fourth proportional to 1,109,865.12, 1,664,798.49 and 268,417.68 is: 402,626.72
Step by Step Solution
- Step 1: Write the proportion equation
1,109,865.12 : 1,664,798.49 = 268,417.68 : x - Step 2: Convert to fraction form
1,109,865.12/1,664,798.49 = 268,417.68/x - Step 3: Cross multiply
1,109,865.12x = 1,664,798.49 × 268,417.68 - Step 4: Simplify right side
1,109,865.12x = 446,861,348,353.30 - Step 5: Solve for x
x = 446,861,348,353.30/1,109,865.12 - Step 6: Final answer
x = 402,626.72
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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.