Finding the Fourth Proportional to 768,605.44, 1,059,812.76 and 496,315.84
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Solution
The fourth proportional to 768,605.44, 1,059,812.76 and 496,315.84 is: 684,358.75
Step by Step Solution
- Step 1: Write the proportion equation
768,605.44 : 1,059,812.76 = 496,315.84 : x - Step 2: Convert to fraction form
768,605.44/1,059,812.76 = 496,315.84/x - Step 3: Cross multiply
768,605.44x = 1,059,812.76 × 496,315.84 - Step 4: Simplify right side
768,605.44x = 526,001,860,222.12 - Step 5: Solve for x
x = 526,001,860,222.12/768,605.44 - Step 6: Final answer
x = 684,358.75
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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.