Finding the Fourth Proportional to 611,149.80, 918,107.10 and 424,525.80
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Solution
The fourth proportional to 611,149.80, 918,107.10 and 424,525.80 is: 637,748.96
Step by Step Solution
- Step 1: Write the proportion equation
611,149.80 : 918,107.10 = 424,525.80 : x - Step 2: Convert to fraction form
611,149.80/918,107.10 = 424,525.80/x - Step 3: Cross multiply
611,149.80x = 918,107.10 × 424,525.80 - Step 4: Simplify right side
611,149.80x = 389,760,151,113.18 - Step 5: Solve for x
x = 389,760,151,113.18/611,149.80 - Step 6: Final answer
x = 637,748.96
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1.5x scale
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.