Finding the Fourth Proportional to 611,456.70, 917,542.26 and 256,440.99
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Solution
The fourth proportional to 611,456.70, 917,542.26 and 256,440.99 is: 384,811.30
Step by Step Solution
- Step 1: Write the proportion equation
611,456.70 : 917,542.26 = 256,440.99 : x - Step 2: Convert to fraction form
611,456.70/917,542.26 = 256,440.99/x - Step 3: Cross multiply
611,456.70x = 917,542.26 × 256,440.99 - Step 4: Simplify right side
611,456.70x = 235,295,445,521.24 - Step 5: Solve for x
x = 235,295,445,521.24/611,456.70 - Step 6: Final answer
x = 384,811.30
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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.