Finding the Fourth Proportional to 2,808,278.19, 4,212,417.24 and 678,362.31
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Solution
The fourth proportional to 2,808,278.19, 4,212,417.24 and 678,362.31 is: 1,017,543.45
Step by Step Solution
- Step 1: Write the proportion equation
2,808,278.19 : 4,212,417.24 = 678,362.31 : x - Step 2: Convert to fraction form
2,808,278.19/4,212,417.24 = 678,362.31/x - Step 3: Cross multiply
2,808,278.19x = 4,212,417.24 × 678,362.31 - Step 4: Simplify right side
2,808,278.19x = 2,857,545,089,610.22 - Step 5: Solve for x
x = 2,857,545,089,610.22/2,808,278.19 - Step 6: Final answer
x = 1,017,543.45
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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.