Finding the Fourth Proportional to 563,731.28, 777,943.24 and 309,081.84
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Solution
The fourth proportional to 563,731.28, 777,943.24 and 309,081.84 is: 426,529.69
Step by Step Solution
- Step 1: Write the proportion equation
563,731.28 : 777,943.24 = 309,081.84 : x - Step 2: Convert to fraction form
563,731.28/777,943.24 = 309,081.84/x - Step 3: Cross multiply
563,731.28x = 777,943.24 × 309,081.84 - Step 4: Simplify right side
563,731.28x = 240,448,128,034.76 - Step 5: Solve for x
x = 240,448,128,034.76/563,731.28 - Step 6: Final answer
x = 426,529.69
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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.