Finding the Fourth Proportional to 1,681,147.42, 2,319,980.79 and 917,201.05
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Solution
The fourth proportional to 1,681,147.42, 2,319,980.79 and 917,201.05 is: 1,265,736.00
Step by Step Solution
- Step 1: Write the proportion equation
1,681,147.42 : 2,319,980.79 = 917,201.05 : x - Step 2: Convert to fraction form
1,681,147.42/2,319,980.79 = 917,201.05/x - Step 3: Cross multiply
1,681,147.42x = 2,319,980.79 × 917,201.05 - Step 4: Simplify right side
1,681,147.42x = 2,127,888,816,567.83 - Step 5: Solve for x
x = 2,127,888,816,567.83/1,681,147.42 - Step 6: Final answer
x = 1,265,736.00
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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.