Finding the Fourth Proportional to 1,387,840.37, 1,915,748.24 and 904,523.09
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Solution
The fourth proportional to 1,387,840.37, 1,915,748.24 and 904,523.09 is: 1,248,586.33
Step by Step Solution
- Step 1: Write the proportion equation
1,387,840.37 : 1,915,748.24 = 904,523.09 : x - Step 2: Convert to fraction form
1,387,840.37/1,915,748.24 = 904,523.09/x - Step 3: Cross multiply
1,387,840.37x = 1,915,748.24 × 904,523.09 - Step 4: Simplify right side
1,387,840.37x = 1,732,838,503,605.51 - Step 5: Solve for x
x = 1,732,838,503,605.51/1,387,840.37 - Step 6: Final answer
x = 1,248,586.33
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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.