Finding the Fourth Proportional to 1,890,890.19, 2,608,570.44 and 1,115,995.32
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Solution
The fourth proportional to 1,890,890.19, 2,608,570.44 and 1,115,995.32 is: 1,539,567.14
Step by Step Solution
- Step 1: Write the proportion equation
1,890,890.19 : 2,608,570.44 = 1,115,995.32 : x - Step 2: Convert to fraction form
1,890,890.19/2,608,570.44 = 1,115,995.32/x - Step 3: Cross multiply
1,890,890.19x = 2,608,570.44 × 1,115,995.32 - Step 4: Simplify right side
1,890,890.19x = 2,911,152,402,930.34 - Step 5: Solve for x
x = 2,911,152,402,930.34/1,890,890.19 - Step 6: Final answer
x = 1,539,567.14
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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.