Finding the Fourth Proportional to 1,051,439.60, 1,449,475.92 and 749,108.72
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Solution
The fourth proportional to 1,051,439.60, 1,449,475.92 and 749,108.72 is: 1,032,693.70
Step by Step Solution
- Step 1: Write the proportion equation
1,051,439.60 : 1,449,475.92 = 749,108.72 : x - Step 2: Convert to fraction form
1,051,439.60/1,449,475.92 = 749,108.72/x - Step 3: Cross multiply
1,051,439.60x = 1,449,475.92 × 749,108.72 - Step 4: Simplify right side
1,051,439.60x = 1,085,815,051,102.02 - Step 5: Solve for x
x = 1,085,815,051,102.02/1,051,439.60 - Step 6: Final answer
x = 1,032,693.70
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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.