Finding the Fourth Proportional to 1,240,109.74, 1,711,239.84 and 723,908.44
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Solution
The fourth proportional to 1,240,109.74, 1,711,239.84 and 723,908.44 is: 998,928.50
Step by Step Solution
- Step 1: Write the proportion equation
1,240,109.74 : 1,711,239.84 = 723,908.44 : x - Step 2: Convert to fraction form
1,240,109.74/1,711,239.84 = 723,908.44/x - Step 3: Cross multiply
1,240,109.74x = 1,711,239.84 × 723,908.44 - Step 4: Simplify right side
1,240,109.74x = 1,238,780,963,040.25 - Step 5: Solve for x
x = 1,238,780,963,040.25/1,240,109.74 - Step 6: Final answer
x = 998,928.50
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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.