Finding the Fourth Proportional to 606,919.20, 910,378.80 and 492,757.80
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Solution
The fourth proportional to 606,919.20, 910,378.80 and 492,757.80 is: 739,136.70
Step by Step Solution
- Step 1: Write the proportion equation
606,919.20 : 910,378.80 = 492,757.80 : x - Step 2: Convert to fraction form
606,919.20/910,378.80 = 492,757.80/x - Step 3: Cross multiply
606,919.20x = 910,378.80 × 492,757.80 - Step 4: Simplify right side
606,919.20x = 448,596,254,654.64 - Step 5: Solve for x
x = 448,596,254,654.64/606,919.20 - Step 6: Final answer
x = 739,136.70
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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.