Finding the Fourth Proportional to 1,388,680.68, 2,079,657.12 and 961,018.08
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Solution
The fourth proportional to 1,388,680.68, 2,079,657.12 and 961,018.08 is: 1,439,199.18
Step by Step Solution
- Step 1: Write the proportion equation
1,388,680.68 : 2,079,657.12 = 961,018.08 : x - Step 2: Convert to fraction form
1,388,680.68/2,079,657.12 = 961,018.08/x - Step 3: Cross multiply
1,388,680.68x = 2,079,657.12 × 961,018.08 - Step 4: Simplify right side
1,388,680.68x = 1,998,588,092,520.73 - Step 5: Solve for x
x = 1,998,588,092,520.73/1,388,680.68 - Step 6: Final answer
x = 1,439,199.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.