Finding the Fourth Proportional to 1,115,827.08, 1,540,009.70 and 680,497.00
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Solution
The fourth proportional to 1,115,827.08, 1,540,009.70 and 680,497.00 is: 939,188.52
Step by Step Solution
- Step 1: Write the proportion equation
1,115,827.08 : 1,540,009.70 = 680,497.00 : x - Step 2: Convert to fraction form
1,115,827.08/1,540,009.70 = 680,497.00/x - Step 3: Cross multiply
1,115,827.08x = 1,540,009.70 × 680,497.00 - Step 4: Simplify right side
1,115,827.08x = 1,047,971,976,120.25 - Step 5: Solve for x
x = 1,047,971,976,120.25/1,115,827.08 - Step 6: Final answer
x = 939,188.52
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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.