Finding the Fourth Proportional to 509,719.26, 703,430.63 and 280,293.95
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Solution
The fourth proportional to 509,719.26, 703,430.63 and 280,293.95 is: 386,815.58
Step by Step Solution
- Step 1: Write the proportion equation
509,719.26 : 703,430.63 = 280,293.95 : x - Step 2: Convert to fraction form
509,719.26/703,430.63 = 280,293.95/x - Step 3: Cross multiply
509,719.26x = 703,430.63 × 280,293.95 - Step 4: Simplify right side
509,719.26x = 197,167,351,241.90 - Step 5: Solve for x
x = 197,167,351,241.90/509,719.26 - Step 6: Final answer
x = 386,815.58
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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.