Finding the Fourth Proportional to 563,679.19, 777,877.09 and 309,024.91
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Solution
The fourth proportional to 563,679.19, 777,877.09 and 309,024.91 is: 426,454.27
Step by Step Solution
- Step 1: Write the proportion equation
563,679.19 : 777,877.09 = 309,024.91 : x - Step 2: Convert to fraction form
563,679.19/777,877.09 = 309,024.91/x - Step 3: Cross multiply
563,679.19x = 777,877.09 × 309,024.91 - Step 4: Simplify right side
563,679.19x = 240,383,397,728.31 - Step 5: Solve for x
x = 240,383,397,728.31/563,679.19 - Step 6: Final answer
x = 426,454.27
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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.