Finding the Fourth Proportional to 509,701.32, 703,405.80 and 280,276.08
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Solution
The fourth proportional to 509,701.32, 703,405.80 and 280,276.08 is: 386,790.88
Step by Step Solution
- Step 1: Write the proportion equation
509,701.32 : 703,405.80 = 280,276.08 : x - Step 2: Convert to fraction form
509,701.32/703,405.80 = 280,276.08/x - Step 3: Cross multiply
509,701.32x = 703,405.80 × 280,276.08 - Step 4: Simplify right side
509,701.32x = 197,147,820,273.26 - Step 5: Solve for x
x = 197,147,820,273.26/509,701.32 - Step 6: Final answer
x = 386,790.88
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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.