Finding the Fourth Proportional to 1,279,344.53, 1,918,885.05 and 426,323.97
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Solution
The fourth proportional to 1,279,344.53, 1,918,885.05 and 426,323.97 is: 639,442.06
Step by Step Solution
- Step 1: Write the proportion equation
1,279,344.53 : 1,918,885.05 = 426,323.97 : x - Step 2: Convert to fraction form
1,279,344.53/1,918,885.05 = 426,323.97/x - Step 3: Cross multiply
1,279,344.53x = 1,918,885.05 × 426,323.97 - Step 4: Simplify right side
1,279,344.53x = 818,066,692,489.65 - Step 5: Solve for x
x = 818,066,692,489.65/1,279,344.53 - Step 6: Final answer
x = 639,442.06
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.