Finding the Fourth Proportional to 859,510.51, 1,289,122.76 and 260,329.21
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Solution
The fourth proportional to 859,510.51, 1,289,122.76 and 260,329.21 is: 390,450.50
Step by Step Solution
- Step 1: Write the proportion equation
859,510.51 : 1,289,122.76 = 260,329.21 : x - Step 2: Convert to fraction form
859,510.51/1,289,122.76 = 260,329.21/x - Step 3: Cross multiply
859,510.51x = 1,289,122.76 × 260,329.21 - Step 4: Simplify right side
859,510.51x = 335,596,307,131.84 - Step 5: Solve for x
x = 335,596,307,131.84/859,510.51 - Step 6: Final answer
x = 390,450.50
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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.