Finding the Fourth Proportional to 1,242,783.67, 1,714,890.78 and 691,369.09
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Solution
The fourth proportional to 1,242,783.67, 1,714,890.78 and 691,369.09 is: 954,005.52
Step by Step Solution
- Step 1: Write the proportion equation
1,242,783.67 : 1,714,890.78 = 691,369.09 : x - Step 2: Convert to fraction form
1,242,783.67/1,714,890.78 = 691,369.09/x - Step 3: Cross multiply
1,242,783.67x = 1,714,890.78 × 691,369.09 - Step 4: Simplify right side
1,242,783.67x = 1,185,622,478,017.99 - Step 5: Solve for x
x = 1,185,622,478,017.99/1,242,783.67 - Step 6: Final answer
x = 954,005.52
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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.