Finding the Fourth Proportional to 567,264.99, 782,821.76 and 312,616.47
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Solution
The fourth proportional to 567,264.99, 782,821.76 and 312,616.47 is: 431,408.56
Step by Step Solution
- Step 1: Write the proportion equation
567,264.99 : 782,821.76 = 312,616.47 : x - Step 2: Convert to fraction form
567,264.99/782,821.76 = 312,616.47/x - Step 3: Cross multiply
567,264.99x = 782,821.76 × 312,616.47 - Step 4: Simplify right side
567,264.99x = 244,722,973,687.31 - Step 5: Solve for x
x = 244,722,973,687.31/567,264.99 - Step 6: Final answer
x = 431,408.56
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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.