Finding the Fourth Proportional to 549,405.13, 758,142.99 and 307,632.28
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Solution
The fourth proportional to 549,405.13, 758,142.99 and 307,632.28 is: 424,512.34
Step by Step Solution
- Step 1: Write the proportion equation
549,405.13 : 758,142.99 = 307,632.28 : x - Step 2: Convert to fraction form
549,405.13/758,142.99 = 307,632.28/x - Step 3: Cross multiply
549,405.13x = 758,142.99 × 307,632.28 - Step 4: Simplify right side
549,405.13x = 233,229,256,579.72 - Step 5: Solve for x
x = 233,229,256,579.72/549,405.13 - Step 6: Final answer
x = 424,512.34
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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.