Finding the Fourth Proportional to 1,165,115.14, 1,605,102.18 and 1,111,304.00
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Solution
The fourth proportional to 1,165,115.14, 1,605,102.18 and 1,111,304.00 is: 1,530,970.13
Step by Step Solution
- Step 1: Write the proportion equation
1,165,115.14 : 1,605,102.18 = 1,111,304.00 : x - Step 2: Convert to fraction form
1,165,115.14/1,605,102.18 = 1,111,304.00/x - Step 3: Cross multiply
1,165,115.14x = 1,605,102.18 × 1,111,304.00 - Step 4: Simplify right side
1,165,115.14x = 1,783,756,472,888.09 - Step 5: Solve for x
x = 1,783,756,472,888.09/1,165,115.14 - Step 6: Final answer
x = 1,530,970.13
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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.