Finding the Fourth Proportional to 1,110,393.58, 1,534,925.56 and 990,720.94
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Solution
The fourth proportional to 1,110,393.58, 1,534,925.56 and 990,720.94 is: 1,369,499.00
Step by Step Solution
- Step 1: Write the proportion equation
1,110,393.58 : 1,534,925.56 = 990,720.94 : x - Step 2: Convert to fraction form
1,110,393.58/1,534,925.56 = 990,720.94/x - Step 3: Cross multiply
1,110,393.58x = 1,534,925.56 × 990,720.94 - Step 4: Simplify right side
1,110,393.58x = 1,520,682,893,633.23 - Step 5: Solve for x
x = 1,520,682,893,633.23/1,110,393.58 - Step 6: Final answer
x = 1,369,499.00
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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.