Finding the Fourth Proportional to 509,708.70, 703,336.50 and 280,228.14
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Solution
The fourth proportional to 509,708.70, 703,336.50 and 280,228.14 is: 386,681.02
Step by Step Solution
- Step 1: Write the proportion equation
509,708.70 : 703,336.50 = 280,228.14 : x - Step 2: Convert to fraction form
509,708.70/703,336.50 = 280,228.14/x - Step 3: Cross multiply
509,708.70x = 703,336.50 × 280,228.14 - Step 4: Simplify right side
509,708.70x = 197,094,679,189.11 - Step 5: Solve for x
x = 197,094,679,189.11/509,708.70 - Step 6: Final answer
x = 386,681.02
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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.