Finding the Fourth Proportional to 1,188,129.18, 1,781,482.03 and 378,163.74
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Solution
The fourth proportional to 1,188,129.18, 1,781,482.03 and 378,163.74 is: 567,019.07
Step by Step Solution
- Step 1: Write the proportion equation
1,188,129.18 : 1,781,482.03 = 378,163.74 : x - Step 2: Convert to fraction form
1,188,129.18/1,781,482.03 = 378,163.74/x - Step 3: Cross multiply
1,188,129.18x = 1,781,482.03 × 378,163.74 - Step 4: Simplify right side
1,188,129.18x = 673,691,907,207.59 - Step 5: Solve for x
x = 673,691,907,207.59/1,188,129.18 - Step 6: Final answer
x = 567,019.07
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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.