Finding the Fourth Proportional to 1,993,108.76, 2,750,489.35 and 1,087,690.76
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Solution
The fourth proportional to 1,993,108.76, 2,750,489.35 and 1,087,690.76 is: 1,501,012.84
Step by Step Solution
- Step 1: Write the proportion equation
1,993,108.76 : 2,750,489.35 = 1,087,690.76 : x - Step 2: Convert to fraction form
1,993,108.76/2,750,489.35 = 1,087,690.76/x - Step 3: Cross multiply
1,993,108.76x = 2,750,489.35 × 1,087,690.76 - Step 4: Simplify right side
1,993,108.76x = 2,991,681,835,001.73 - Step 5: Solve for x
x = 2,991,681,835,001.73/1,993,108.76 - Step 6: Final answer
x = 1,501,012.84
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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.