Finding the Fourth Proportional to 859,392.95, 1,289,223.14 and 260,211.44
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Solution
The fourth proportional to 859,392.95, 1,289,223.14 and 260,211.44 is: 390,357.65
Step by Step Solution
- Step 1: Write the proportion equation
859,392.95 : 1,289,223.14 = 260,211.44 : x - Step 2: Convert to fraction form
859,392.95/1,289,223.14 = 260,211.44/x - Step 3: Cross multiply
859,392.95x = 1,289,223.14 × 260,211.44 - Step 4: Simplify right side
859,392.95x = 335,470,611,662.72 - Step 5: Solve for x
x = 335,470,611,662.72/859,392.95 - Step 6: Final answer
x = 390,357.65
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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.