Finding the Fourth Proportional to 509,778.14, 703,511.87 and 280,352.93
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Solution
The fourth proportional to 509,778.14, 703,511.87 and 280,352.93 is: 386,896.96
Step by Step Solution
- Step 1: Write the proportion equation
509,778.14 : 703,511.87 = 280,352.93 : x - Step 2: Convert to fraction form
509,778.14/703,511.87 = 280,352.93/x - Step 3: Cross multiply
509,778.14x = 703,511.87 × 280,352.93 - Step 4: Simplify right side
509,778.14x = 197,231,609,124.96 - Step 5: Solve for x
x = 197,231,609,124.96/509,778.14 - Step 6: Final answer
x = 386,896.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.