Finding the Fourth Proportional to 549,649.28, 758,343.84 and 307,899.20
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Solution
The fourth proportional to 549,649.28, 758,343.84 and 307,899.20 is: 424,804.45
Step by Step Solution
- Step 1: Write the proportion equation
549,649.28 : 758,343.84 = 307,899.20 : x - Step 2: Convert to fraction form
549,649.28/758,343.84 = 307,899.20/x - Step 3: Cross multiply
549,649.28x = 758,343.84 × 307,899.20 - Step 4: Simplify right side
549,649.28x = 233,493,461,660.93 - Step 5: Solve for x
x = 233,493,461,660.93/549,649.28 - Step 6: Final answer
x = 424,804.45
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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.