Finding the Fourth Proportional to 1,985,357.81, 2,739,793.75 and 1,125,918.05
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Solution
The fourth proportional to 1,985,357.81, 2,739,793.75 and 1,125,918.05 is: 1,553,766.88
Step by Step Solution
- Step 1: Write the proportion equation
1,985,357.81 : 2,739,793.75 = 1,125,918.05 : x - Step 2: Convert to fraction form
1,985,357.81/2,739,793.75 = 1,125,918.05/x - Step 3: Cross multiply
1,985,357.81x = 2,739,793.75 × 1,125,918.05 - Step 4: Simplify right side
1,985,357.81x = 3,084,783,219,888.42 - Step 5: Solve for x
x = 3,084,783,219,888.42/1,985,357.81 - Step 6: Final answer
x = 1,553,766.88
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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.