Finding the Fourth Proportional to 758,816.28, 1,129,767.03 and 748,219.05
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Solution
The fourth proportional to 758,816.28, 1,129,767.03 and 748,219.05 is: 1,113,989.30
Step by Step Solution
- Step 1: Write the proportion equation
758,816.28 : 1,129,767.03 = 748,219.05 : x - Step 2: Convert to fraction form
758,816.28/1,129,767.03 = 748,219.05/x - Step 3: Cross multiply
758,816.28x = 1,129,767.03 × 748,219.05 - Step 4: Simplify right side
758,816.28x = 845,313,213,907.92 - Step 5: Solve for x
x = 845,313,213,907.92/758,816.28 - Step 6: Final answer
x = 1,113,989.30
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.