Finding the Fourth Proportional to 509,878.34, 703,652.18 and 280,456.97
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Solution
The fourth proportional to 509,878.34, 703,652.18 and 280,456.97 is: 387,041.66
Step by Step Solution
- Step 1: Write the proportion equation
509,878.34 : 703,652.18 = 280,456.97 : x - Step 2: Convert to fraction form
509,878.34/703,652.18 = 280,456.97/x - Step 3: Cross multiply
509,878.34x = 703,652.18 × 280,456.97 - Step 4: Simplify right side
509,878.34x = 197,344,158,336.70 - Step 5: Solve for x
x = 197,344,158,336.70/509,878.34 - Step 6: Final answer
x = 387,041.66
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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.