Finding the Fourth Proportional to 1,918,188.58, 2,646,705.08 and 1,102,234.62
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Solution
The fourth proportional to 1,918,188.58, 2,646,705.08 and 1,102,234.62 is: 1,520,856.71
Step by Step Solution
- Step 1: Write the proportion equation
1,918,188.58 : 2,646,705.08 = 1,102,234.62 : x - Step 2: Convert to fraction form
1,918,188.58/2,646,705.08 = 1,102,234.62/x - Step 3: Cross multiply
1,918,188.58x = 2,646,705.08 × 1,102,234.62 - Step 4: Simplify right side
1,918,188.58x = 2,917,289,968,105.87 - Step 5: Solve for x
x = 2,917,289,968,105.87/1,918,188.58 - Step 6: Final answer
x = 1,520,856.71
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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.