Finding the Fourth Proportional to 1,515,430.72, 2,091,565.56 and 903,622.96
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Solution
The fourth proportional to 1,515,430.72, 2,091,565.56 and 903,622.96 is: 1,247,161.38
Step by Step Solution
- Step 1: Write the proportion equation
1,515,430.72 : 2,091,565.56 = 903,622.96 : x - Step 2: Convert to fraction form
1,515,430.72/2,091,565.56 = 903,622.96/x - Step 3: Cross multiply
1,515,430.72x = 2,091,565.56 × 903,622.96 - Step 4: Simplify right side
1,515,430.72x = 1,889,986,662,361.26 - Step 5: Solve for x
x = 1,889,986,662,361.26/1,515,430.72 - Step 6: Final answer
x = 1,247,161.38
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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.