Finding the Fourth Proportional to 611,453.70, 917,537.76 and 256,437.99
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Solution
The fourth proportional to 611,453.70, 917,537.76 and 256,437.99 is: 384,806.80
Step by Step Solution
- Step 1: Write the proportion equation
611,453.70 : 917,537.76 = 256,437.99 : x - Step 2: Convert to fraction form
611,453.70/917,537.76 = 256,437.99/x - Step 3: Cross multiply
611,453.70x = 917,537.76 × 256,437.99 - Step 4: Simplify right side
611,453.70x = 235,291,538,923.50 - Step 5: Solve for x
x = 235,291,538,923.50/611,453.70 - Step 6: Final answer
x = 384,806.80
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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.