Finding the Fourth Proportional to 859,519.50, 1,289,136.26 and 260,338.20
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Solution
The fourth proportional to 859,519.50, 1,289,136.26 and 260,338.20 is: 390,463.99
Step by Step Solution
- Step 1: Write the proportion equation
859,519.50 : 1,289,136.26 = 260,338.20 : x - Step 2: Convert to fraction form
859,519.50/1,289,136.26 = 260,338.20/x - Step 3: Cross multiply
859,519.50x = 1,289,136.26 × 260,338.20 - Step 4: Simplify right side
859,519.50x = 335,611,413,483.13 - Step 5: Solve for x
x = 335,611,413,483.13/859,519.50 - Step 6: Final answer
x = 390,463.99
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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.