Finding the Fourth Proportional to 490,911.09, 736,579.86 and 266,430.12
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Solution
The fourth proportional to 490,911.09, 736,579.86 and 266,430.12 is: 399,760.90
Step by Step Solution
- Step 1: Write the proportion equation
490,911.09 : 736,579.86 = 266,430.12 : x - Step 2: Convert to fraction form
490,911.09/736,579.86 = 266,430.12/x - Step 3: Cross multiply
490,911.09x = 736,579.86 × 266,430.12 - Step 4: Simplify right side
490,911.09x = 196,247,060,489.38 - Step 5: Solve for x
x = 196,247,060,489.38/490,911.09 - Step 6: Final answer
x = 399,760.90
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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.