Finding the Fourth Proportional to 909,935.84, 1,365,103.44 and 278,897.12
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Solution
The fourth proportional to 909,935.84, 1,365,103.44 and 278,897.12 is: 418,406.88
Step by Step Solution
- Step 1: Write the proportion equation
909,935.84 : 1,365,103.44 = 278,897.12 : x - Step 2: Convert to fraction form
909,935.84/1,365,103.44 = 278,897.12/x - Step 3: Cross multiply
909,935.84x = 1,365,103.44 × 278,897.12 - Step 4: Simplify right side
909,935.84x = 380,723,417,918.09 - Step 5: Solve for x
x = 380,723,417,918.09/909,935.84 - Step 6: Final answer
x = 418,406.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.