Finding the Fourth Proportional to 909,989.08, 1,365,245.94 and 278,995.96
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Solution
The fourth proportional to 909,989.08, 1,365,245.94 and 278,995.96 is: 418,574.37
Step by Step Solution
- Step 1: Write the proportion equation
909,989.08 : 1,365,245.94 = 278,995.96 : x - Step 2: Convert to fraction form
909,989.08/1,365,245.94 = 278,995.96/x - Step 3: Cross multiply
909,989.08x = 1,365,245.94 × 278,995.96 - Step 4: Simplify right side
909,989.08x = 380,898,101,666.40 - Step 5: Solve for x
x = 380,898,101,666.40/909,989.08 - Step 6: Final answer
x = 418,574.37
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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.