Finding the Fourth Proportional to 1,347,445.10, 2,021,448.45 and 449,165.90
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Solution
The fourth proportional to 1,347,445.10, 2,021,448.45 and 449,165.90 is: 673,842.45
Step by Step Solution
- Step 1: Write the proportion equation
1,347,445.10 : 2,021,448.45 = 449,165.90 : x - Step 2: Convert to fraction form
1,347,445.10/2,021,448.45 = 449,165.90/x - Step 3: Cross multiply
1,347,445.10x = 2,021,448.45 × 449,165.90 - Step 4: Simplify right side
1,347,445.10x = 907,965,712,347.86 - Step 5: Solve for x
x = 907,965,712,347.86/1,347,445.10 - Step 6: Final answer
x = 673,842.45
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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.