Finding the Fourth Proportional to 1,190,577.90, 1,643,027.14 and 646,713.53
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Solution
The fourth proportional to 1,190,577.90, 1,643,027.14 and 646,713.53 is: 892,480.77
Step by Step Solution
- Step 1: Write the proportion equation
1,190,577.90 : 1,643,027.14 = 646,713.53 : x - Step 2: Convert to fraction form
1,190,577.90/1,643,027.14 = 646,713.53/x - Step 3: Cross multiply
1,190,577.90x = 1,643,027.14 × 646,713.53 - Step 4: Simplify right side
1,190,577.90x = 1,062,567,880,349.81 - Step 5: Solve for x
x = 1,062,567,880,349.81/1,190,577.90 - Step 6: Final answer
x = 892,480.77
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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.