Finding the Fourth Proportional to 853,760.36, 1,178,189.70 and 471,787.14
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Solution
The fourth proportional to 853,760.36, 1,178,189.70 and 471,787.14 is: 651,066.48
Step by Step Solution
- Step 1: Write the proportion equation
853,760.36 : 1,178,189.70 = 471,787.14 : x - Step 2: Convert to fraction form
853,760.36/1,178,189.70 = 471,787.14/x - Step 3: Cross multiply
853,760.36x = 1,178,189.70 × 471,787.14 - Step 4: Simplify right side
853,760.36x = 555,854,748,940.46 - Step 5: Solve for x
x = 555,854,748,940.46/853,760.36 - Step 6: Final answer
x = 651,066.48
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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.