Finding the Fourth Proportional to 563,485.21, 777,689.30 and 348,694.47
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Solution
The fourth proportional to 563,485.21, 777,689.30 and 348,694.47 is: 481,247.70
Step by Step Solution
- Step 1: Write the proportion equation
563,485.21 : 777,689.30 = 348,694.47 : x - Step 2: Convert to fraction form
563,485.21/777,689.30 = 348,694.47/x - Step 3: Cross multiply
563,485.21x = 777,689.30 × 348,694.47 - Step 4: Simplify right side
563,485.21x = 271,175,959,159.91 - Step 5: Solve for x
x = 271,175,959,159.91/563,485.21 - Step 6: Final answer
x = 481,247.70
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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.