Finding the Fourth Proportional to 790,160.76, 1,090,413.54 and 427,576.68
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Solution
The fourth proportional to 790,160.76, 1,090,413.54 and 427,576.68 is: 590,051.32
Step by Step Solution
- Step 1: Write the proportion equation
790,160.76 : 1,090,413.54 = 427,576.68 : x - Step 2: Convert to fraction form
790,160.76/1,090,413.54 = 427,576.68/x - Step 3: Cross multiply
790,160.76x = 1,090,413.54 × 427,576.68 - Step 4: Simplify right side
790,160.76x = 466,235,401,260.25 - Step 5: Solve for x
x = 466,235,401,260.25/790,160.76 - Step 6: Final answer
x = 590,051.32
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1.5x scale
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.