Finding the Fourth Proportional to 509,763.06, 703,490.57 and 280,328.99
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Solution
The fourth proportional to 509,763.06, 703,490.57 and 280,328.99 is: 386,863.65
Step by Step Solution
- Step 1: Write the proportion equation
509,763.06 : 703,490.57 = 280,328.99 : x - Step 2: Convert to fraction form
509,763.06/703,490.57 = 280,328.99/x - Step 3: Cross multiply
509,763.06x = 703,490.57 × 280,328.99 - Step 4: Simplify right side
509,763.06x = 197,208,796,043.53 - Step 5: Solve for x
x = 197,208,796,043.53/509,763.06 - Step 6: Final answer
x = 386,863.65
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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.