Finding the Fourth Proportional to 1,438,448, 2,157,775.68 and 551,984
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Solution
The fourth proportional to 1,438,448, 2,157,775.68 and 551,984 is: 828,015.79
Step by Step Solution
- Step 1: Write the proportion equation
1,438,448 : 2,157,775.68 = 551,984 : x - Step 2: Convert to fraction form
1,438,448/2,157,775.68 = 551,984/x - Step 3: Cross multiply
1,438,448x = 2,157,775.68 × 551,984 - Step 4: Simplify right side
1,438,448x = 1,191,057,650,949.12 - Step 5: Solve for x
x = 1,191,057,650,949.12/1,438,448 - Step 6: Final answer
x = 828,015.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.