Finding the Fourth Proportional to 555,771.28, 767,138.76 and 354,567.12
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Solution
The fourth proportional to 555,771.28, 767,138.76 and 354,567.12 is: 489,413.88
Step by Step Solution
- Step 1: Write the proportion equation
555,771.28 : 767,138.76 = 354,567.12 : x - Step 2: Convert to fraction form
555,771.28/767,138.76 = 354,567.12/x - Step 3: Cross multiply
555,771.28x = 767,138.76 × 354,567.12 - Step 4: Simplify right side
555,771.28x = 272,002,180,773.57 - Step 5: Solve for x
x = 272,002,180,773.57/555,771.28 - Step 6: Final answer
x = 489,413.88
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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.