Finding the Fourth Proportional to 548,603.70, 822,905.55 and 455,291.70
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Solution
The fourth proportional to 548,603.70, 822,905.55 and 455,291.70 is: 682,937.55
Step by Step Solution
- Step 1: Write the proportion equation
548,603.70 : 822,905.55 = 455,291.70 : x - Step 2: Convert to fraction form
548,603.70/822,905.55 = 455,291.70/x - Step 3: Cross multiply
548,603.70x = 822,905.55 × 455,291.70 - Step 4: Simplify right side
548,603.70x = 374,662,066,798.94 - Step 5: Solve for x
x = 374,662,066,798.94/548,603.70 - Step 6: Final answer
x = 682,937.55
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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.