Finding the Fourth Proportional to 1,289,296.96, 1,934,784.60 and 490,585.12
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Solution
The fourth proportional to 1,289,296.96, 1,934,784.60 and 490,585.12 is: 736,196.99
Step by Step Solution
- Step 1: Write the proportion equation
1,289,296.96 : 1,934,784.60 = 490,585.12 : x - Step 2: Convert to fraction form
1,289,296.96/1,934,784.60 = 490,585.12/x - Step 3: Cross multiply
1,289,296.96x = 1,934,784.60 × 490,585.12 - Step 4: Simplify right side
1,289,296.96x = 949,176,535,165.15 - Step 5: Solve for x
x = 949,176,535,165.15/1,289,296.96 - Step 6: Final answer
x = 736,196.99
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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.