Finding the Fourth Proportional to 324,432.13, 486,649.35 and 99,791.05
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Solution
The fourth proportional to 324,432.13, 486,649.35 and 99,791.05 is: 149,686.93
Step by Step Solution
- Step 1: Write the proportion equation
324,432.13 : 486,649.35 = 99,791.05 : x - Step 2: Convert to fraction form
324,432.13/486,649.35 = 99,791.05/x - Step 3: Cross multiply
324,432.13x = 486,649.35 × 99,791.05 - Step 4: Simplify right side
324,432.13x = 48,563,249,618.32 - Step 5: Solve for x
x = 48,563,249,618.32/324,432.13 - Step 6: Final answer
x = 149,686.93
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1.5x scale
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.