Finding the Fourth Proportional to 1,170,645.96, 1,615,458.42 and 687,203.40
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Solution
The fourth proportional to 1,170,645.96, 1,615,458.42 and 687,203.40 is: 948,321.32
Step by Step Solution
- Step 1: Write the proportion equation
1,170,645.96 : 1,615,458.42 = 687,203.40 : x - Step 2: Convert to fraction form
1,170,645.96/1,615,458.42 = 687,203.40/x - Step 3: Cross multiply
1,170,645.96x = 1,615,458.42 × 687,203.40 - Step 4: Simplify right side
1,170,645.96x = 1,110,148,518,782.63 - Step 5: Solve for x
x = 1,110,148,518,782.63/1,170,645.96 - Step 6: Final answer
x = 948,321.32
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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.