Finding the Fourth Proportional to 509,720.26, 703,432.01 and 280,294.95
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Solution
The fourth proportional to 509,720.26, 703,432.01 and 280,294.95 is: 386,816.96
Step by Step Solution
- Step 1: Write the proportion equation
509,720.26 : 703,432.01 = 280,294.95 : x - Step 2: Convert to fraction form
509,720.26/703,432.01 = 280,294.95/x - Step 3: Cross multiply
509,720.26x = 703,432.01 × 280,294.95 - Step 4: Simplify right side
509,720.26x = 197,168,440,071.35 - Step 5: Solve for x
x = 197,168,440,071.35/509,720.26 - Step 6: Final answer
x = 386,816.96
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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.