Finding the Fourth Proportional to 509,721.02, 703,433.05 and 280,295.70
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Solution
The fourth proportional to 509,721.02, 703,433.05 and 280,295.70 is: 386,817.99
Step by Step Solution
- Step 1: Write the proportion equation
509,721.02 : 703,433.05 = 280,295.70 : x - Step 2: Convert to fraction form
509,721.02/703,433.05 = 280,295.70/x - Step 3: Cross multiply
509,721.02x = 703,433.05 × 280,295.70 - Step 4: Simplify right side
509,721.02x = 197,169,259,152.89 - Step 5: Solve for x
x = 197,169,259,152.89/509,721.02 - Step 6: Final answer
x = 386,817.99
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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.