Finding the Fourth Proportional to 1,540,411.08, 2,125,815.70 and 861,345.80
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Solution
The fourth proportional to 1,540,411.08, 2,125,815.70 and 861,345.80 is: 1,188,684.27
Step by Step Solution
- Step 1: Write the proportion equation
1,540,411.08 : 2,125,815.70 = 861,345.80 : x - Step 2: Convert to fraction form
1,540,411.08/2,125,815.70 = 861,345.80/x - Step 3: Cross multiply
1,540,411.08x = 2,125,815.70 × 861,345.80 - Step 4: Simplify right side
1,540,411.08x = 1,831,062,424,769.06 - Step 5: Solve for x
x = 1,831,062,424,769.06/1,540,411.08 - Step 6: Final answer
x = 1,188,684.27
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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.