Finding the Fourth Proportional to 1,176,976.26, 1,619,130.56 and 1,031,125.23
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Solution
The fourth proportional to 1,176,976.26, 1,619,130.56 and 1,031,125.23 is: 1,418,487.72
Step by Step Solution
- Step 1: Write the proportion equation
1,176,976.26 : 1,619,130.56 = 1,031,125.23 : x - Step 2: Convert to fraction form
1,176,976.26/1,619,130.56 = 1,031,125.23/x - Step 3: Cross multiply
1,176,976.26x = 1,619,130.56 × 1,031,125.23 - Step 4: Simplify right side
1,176,976.26x = 1,669,526,365,924.40 - Step 5: Solve for x
x = 1,669,526,365,924.40/1,176,976.26 - Step 6: Final answer
x = 1,418,487.72
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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.