Finding the Fourth Proportional to 1,521,462.13, 2,099,683.37 and 842,398.63
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Solution
The fourth proportional to 1,521,462.13, 2,099,683.37 and 842,398.63 is: 1,162,546.45
Step by Step Solution
- Step 1: Write the proportion equation
1,521,462.13 : 2,099,683.37 = 842,398.63 : x - Step 2: Convert to fraction form
1,521,462.13/2,099,683.37 = 842,398.63/x - Step 3: Cross multiply
1,521,462.13x = 2,099,683.37 × 842,398.63 - Step 4: Simplify right side
1,521,462.13x = 1,768,770,394,321.78 - Step 5: Solve for x
x = 1,768,770,394,321.78/1,521,462.13 - Step 6: Final answer
x = 1,162,546.45
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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.