Finding the Fourth Proportional to 393,889.20, 591,125.40 and 260,725.20
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Solution
The fourth proportional to 393,889.20, 591,125.40 and 260,725.20 is: 391,280.82
Step by Step Solution
- Step 1: Write the proportion equation
393,889.20 : 591,125.40 = 260,725.20 : x - Step 2: Convert to fraction form
393,889.20/591,125.40 = 260,725.20/x - Step 3: Cross multiply
393,889.20x = 591,125.40 × 260,725.20 - Step 4: Simplify right side
393,889.20x = 154,121,288,140.08 - Step 5: Solve for x
x = 154,121,288,140.08/393,889.20 - Step 6: Final answer
x = 391,280.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.