Finding the Fourth Proportional to 1,242,780.67, 1,714,886.64 and 691,366.09
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Solution
The fourth proportional to 1,242,780.67, 1,714,886.64 and 691,366.09 is: 954,001.38
Step by Step Solution
- Step 1: Write the proportion equation
1,242,780.67 : 1,714,886.64 = 691,366.09 : x - Step 2: Convert to fraction form
1,242,780.67/1,714,886.64 = 691,366.09/x - Step 3: Cross multiply
1,242,780.67x = 1,714,886.64 × 691,366.09 - Step 4: Simplify right side
1,242,780.67x = 1,185,614,471,090.04 - Step 5: Solve for x
x = 1,185,614,471,090.04/1,242,780.67 - Step 6: Final answer
x = 954,001.38
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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.