Finding the Fourth Proportional to 542,728.36, 748,804.26 and 316,334.44
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Solution
The fourth proportional to 542,728.36, 748,804.26 and 316,334.44 is: 436,447.76
Step by Step Solution
- Step 1: Write the proportion equation
542,728.36 : 748,804.26 = 316,334.44 : x - Step 2: Convert to fraction form
542,728.36/748,804.26 = 316,334.44/x - Step 3: Cross multiply
542,728.36x = 748,804.26 × 316,334.44 - Step 4: Simplify right side
542,728.36x = 236,872,576,256.71 - Step 5: Solve for x
x = 236,872,576,256.71/542,728.36 - Step 6: Final answer
x = 436,447.76
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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.